I'm not sure if you can call most of the games you listed as being exclusives. A lot of those games are heading to the PC or have already been released. My dilemma with purchasing an Xbox has always been the fact that I have a decent PC and I can get most of Microsoft's games for the PC. I'm also cheap when it comes to hardware and refuse to pay 500$ Canadian for something I'm not 100% sure I want. I don't feel I should have to pay to download extra levels in games or to play online. I have to admit though there have been a few days (especially before Christmas and the Wii's release) that I considered grabbing a 360 that came in the holiday pack. I also have an HDTV, you'd think this would make me want a 360 or a PS3 even more but for some reason I don't. I'm glad that the 360 is getting decent games though. I like talking to friends about what games they like playing and hearing about how they feel playing those games. I'd say the game I'd like to play most that's a real Xbox 360 exclusive is Castle Crashers. I love that style of game. I'd gladly purchase it if I had a 360 ;)
Prepare for termination! It is the only logical thing to do, for I am only loyal to Megatron.