
The structure of your review is entirely up to you, but a good thing to inform the public would be how long you've played so far. That way we can all know how thoroughly it has been "tested" and read the reviews thereafter (If you look at your save-game it sais exactly how long you have been playing). Also it would be comfortable if everyone scored with an equal system and I suggest the PC-gamer style with percentage (0% being lowest and 100% being highest). And oh yeah, one more thing. For some people this is obvious, for some it's not (apparently it wasn't obvious for PC-gamer), but please don't, under any circumstances, post spoilers. Leave that to the "Oblivion cheats and hints" forum.
With that said here comes my review:
Time Played: 26 hours
Version: PC
The box
You know when you see a famous person on television you imagine the celebrity being gloriously big as the fame shines all over him/her also in real life, then if you sometime happen to meet that person the first impression is often "Hey, I thought he/she was.. bigger", you know that feeling right? Well, thats the exact same feeling I had about the box. When the clerk handed it over to me swiftly (apparently it wasn't the first box he grabed from bellow the counter) it felt like a small punch on my stomach as I've imagined the box to be glorious, large and shiny. Well it was, but I didn't see that directly.
I have the Collectors Edition and I capitalize it since I find the box being the neatest and most beautiful game-box I have in my possession (and I have many). When you take it out from the outer box the "book" feels very authentic and it feels very real with its leathery worn look and the (imitational) iron crest in the middle. The inside feels no longer like a book but the two pictures you first see (one of a dremora and one of a warrior in iron(?) armor both brandishing weapons towards you) made me feel I was really opening a whole new world. As you open the last step it suddenly feels like a treasure map wide open.
The content of the box is a different matter though. The coin doesn't feel like a real coin, more like something that comes from a cerials(sp?)-box. I still like it, it's cool with the emperor profile on one side with the text "The Empire Is Law. The Law Is Sacred" around it and I have it nicely attached on my monitor. However, I feel sorry for all the wealthy people of Tamriel having to carry thousands of these heavy and huge pieces of metal around in their purses...
The manual was quite boring, I usually like reading manuals but there was nothing in the manual that made it an exciting read. It's quite thin with very small and boring pictures and only covers the most basics of the game. Big minus. The map was also nothing special, it's the same as the in-game map so it's kind of worthless. The pocket-guide is interesting though, nothing very heavy but for those who wants a quick guide to the Tamrielic history it's a nice read.
Alright, enought about the box and lets get on with the game itself.
The environment
Wow... I mean, Wow... yeah that's right, Wow... It's totally worth repeating myself since the environment meets my expectations and runs through them like cutting butter with a butcherers knife. The ambient of the cellar-jail you start in is magnificent, the lighting in the cave makes it feel extreamly real and the outside view is astonishing. I don't feel there is much more to say.. It will take long time before a game beats Oblivion in this arena.
The sound goes very close together with the environment. The wind blowing, the birds singing, water flowing, yes everything has a very realistic sound and it surelly matches up with the beautiful environment. The music is also beautiful and fits rather nice in the background but I've actually decided to turn it all off as the mere sounds of the environment is enough music to my ears. Just splendid.
The adventure
I haven't progressed very far in the main quest but so far it feels very exciting, although I haven't got to the point were I like it better than the Morrowind main quest. So far the events are rather small and I'm more or less a tool in all happening. I like that since it feels more realistic rather than being the center of all things, besides it lets you go your own way towards the solutions.
The guilds I must say has been a slight dissapointment. (I've only explored Fighters and Mages guild, so I know nothing of the others) In Morrowind the guilds were a central place, with quests, shops, beds and everything you needed practically, in Oblivion however I feel it's more limited. Sure, the guilds have beds and shops (if you have the luck and sellers are IN the guild-house and not wandering around some other place), but for quests it's missing something.
I haven't progressed very far here either but in Mages guild I've gotten the task to go to each guild-house in Cyrodiil and ask for a recommendation. Each of the guilds will ask you for a task before they give you their recommendation and they vary in scope and difficulty. In the Fighters Guilds there are only two guilds in Cyrodiil that accepts novices so the contracts has to be recieved there. Not much problem, but it sure limits the different quests to do at early levels.
Over-all I find that the quests are much more fun than Morrowind as they often evolv into something greater than expected and include quite often a bit of thinking from your part. However, as far as I've explored I feel there are a lot less quests then there were in MW. If you don't want to be a thief/assassin there are only two guilds to join, Mages and Fighters, so the only quests will be attained there. Sure there are some side-quests and most are quite fun, but they are limited and will get boring the third character you create.
I really hope I'm missing something or else I will be hoping on the modders out there to give me more quests.
The mechanics
With this I mean all the stuff "around" the adventure itself, such things as the menues, inventory, weapon-systems, skills, etc..
So to start with the bad things.. I have to say this is one MAYOR annoyance and dissapointment. The "TAB-menu. Ok, I'm keeping this short or I will soon be cursing Bethesda and all that is related to it. The menu totally sucks. What's up with the size of it? Is it made for analphabetics or three-years old kids?! All these tabs makes it a real pain to reach the desired location the menu and the fact that everything is labeled with ICONS and NO text it makes the road a guessing game. Sure you learn what the icons mean and most are explained in the manual, but hey, nothing beats the simlicity of WORDS! Right.. I'll calm down... Let's just say that I try to ignore the fact that it's a plain pain to find something in the inventory or find out what disease you are carrying.. Why, oh, why didn't they use the Excellent menu of Morrowind were you could see all you needed on the same screen while in oblivion you get to see at most 7 (!!!!) spells at the same time.. I guess thats what we have a scrolling weel for... *sigh*
Another contribute to the downgrade to a kids-game is the weapon-system. Now you no longer see the damage a weapon does but a number describing the strength of the weapon compared to your skill, condition of the weapon, etc.. All is put down in one simple number.. No longer do you need to think what weapon to choose.. No, no longer do you need to think. All you have to do is look what weapon has the highest number and voila, thats the one to use.
This is getting far to long so I'm shortening it up a bit. The combat-system as a whole is a great improvement from MW, it's is actually fun to get in a fight as you exchange blows while blocking and throwing off a fireball or heal when appropriate. It also makes it a lot more valuable to use support-spells and other skills in battle rather than just bashing away. (Considering I'm a battlemage).
I'm putting the rest aside as there is not much more to comment. The horses are a nice addition and so are the houses but nothing really exceptional. Tha AI works as I guessed it would and it totally rocks all RPGs I've played so far. Of course they are not living beings just yet

Conclusion
As you can see I have a couple of MAYOR pluses and a couple of MAYOR minuses however the minuses have no chance of outweighting the pluses. This is a game unlike any other and I put it among the greatest games I've ever played. Hopefully a patch or two will fix the occational crashes, the lonesome bugs and do something about the menu (maybe give us more hotkeys or SOMETHING), that way it will go one step further into perfection.
Alhtough I doubt it'll ever reach perfection considerng some of the mayor dissapointments it still makes it a close second to Morrowind so far (thats right, just second). In time and with some mods I'm very certain Oblivion will once for all take the lead and become my favorite game all-time.
Score: 91% (-5% Menu, -3% Simplicity, -1% Low questrate)