Game with Most Replay Value

In your opinion, what game has the most replay value? Either in Single Player, or Multiplayer! I just got a 360, so I wouldn't really know any, and this seems like a great way to find out some good deals. Also, if you played both Assassin's Creed and Bioshock, which do you like better, and which has more replay value!?

Oh, just a quick little question too, I'm thinking about putting a fan on a stand next to my 360 to make sure it doesn't over-heat. Is this a good idea? (I mean, I know it'd be good, but I'm only asknig cause I don't know if it currently gets enough air.)

In your opinion, what game has the most replay value? Either in Single Player, or Multiplayer! I just got a 360, so I wouldn't really know any, and this seems like a great way to find out some good deals. Also, if you played both Assassin's Creed and Bioshock, which do you like better, and which has more replay value!?

Oh, just a quick little question too, I'm thinking about putting a fan on a stand next to my 360 to make sure it doesn't over-heat. Is this a good idea? (I mean, I know it'd be good, but I'm only asknig cause I don't know if it currently gets enough air.)

Zeldaguy16

Creed vs Bioshock. I'd vote for bioshock. Infinitely more replay value since creed has basically zero replay value.

For good multiplayer, several top shooters depending on your tastes - gears, halo, call of duty. CoD4 has a solid rank and development system that gives it a lot of replay value for multiplayer but the single player is rather sparse.

Your Xbox should be fine as long as you don't play inside a tiny room that gets very hot during the day. Mine is in the living room on top of a wooden side table. just keep the top and sides clear and it should be fine.

As for replay value, I'd say Mass Effect and The Elder Scrolls IV: Oblivion currently have the most replayablility in terms of single player. I haven't played either Assassin's Creed or Bioshock but it seems like Bioshock would have more replayability (since you can choose to be selfish or good) and Creed would be fun because of the open environment that you can explore.

Mutiplayer games I currently play: Gears of War, Call of Duty 4, Halo 3. I've heard that Team Fortress 2 on the Orange Box is very good as well. Probably Halo 3 and Call of Duty 4 have the most replayablility in terms of multiplayer because they have ranking systems and customizability (Halo 3 has a level editor + video capture as well).

If you want older games, Dead Rising and Crackdown have a lot of replay value.