I just played the demo for Brutal Legend and it was awesome! I was skeptical about it because I'm not a huge Jack Black fan, but I was more than impressed with this game...I'm putting my money down on it today.
I also played the demos for NBA 2k10 and NBA Live...I've always been a 2k guy, but after playing the demo I'm kinda leaning towards Live this year...I'll have to rent them both before I make my decision.