First of all, thanks a ton guys. You all gave super informative, in-depth answers, and I greatly appreciate it.
I'm definitely pumped to get my 360 in the mail tomorrow or the next day, even though I won't be setting it up for a few more weeks until I'm completely relocated.
As was mentioned by a few, I've always been a big Madden and Tiger Woods guy. I was a big time NBA Live guy for a long long time as well, but recently NBA 2K has blown them out of the water, so I may look that route for '08. I'll just be holding off until the new releases come out -- I'm in no big rush.
I've played Guitar Hero II for 360 at a friend's and absolutely loved it. I'll definitely be looking into purchasing it.
As for the PS controllers -- I've just always felt comfortable holding them. The original Xbox controller was so cumbersome and clunky, and the buttons were positioned horribly, IMO. Did 360 remove the black and white buttons completely, or just re-locate them elsewhere? Looking at picture(s) of the controller for 360 on-line appear that it's been re-designed much better.
teddy, I agree completely on the hockey game. I'm not a big NHL guy or anything, but EA makes a helluva fun hockey game. I always enjoy it, though I haven't owned one in years; whenever I play at other peoples' places, it's always very well done. I also stick to MVPMods for my baseball gaming for now. I imagine I'll probably wait until next season to buy a baseball game and stick to Madden, Tiger, and whichever basketball game I choose to hold me over until then. I did play PS2 Online and thought it was pretty cool -- back in 2004 I was ranked in the Top 200 for Madden, but have since slowed my video game playing a ton.
Being able to grab Demos is a huge plus, that I'm really looking forward to.
Again, thanks a lot guys. I really appreciate it.