Starcraft2. I have had it preordered since Jan 31. I never really played the Diablo series, so I can't comment on them. But I am looking forward to SC2
I've been wanting to play the beta for a while. I just never got around to registering it. But I already have a tri-SLi 8800 Ultra system at home (soon to be getting some GTX 280s in SLi) so power wise I'm set.
Diablo 3 looks really nice from the videos... though it's still much too like just a Diablo 2 expansion..
Same goes for StarCraft, looks like it's just got improved graphics and a few new units..
I honestly am not sure about a D3 storyline(if you played the first you, you'll get it), but I am very interested in a new Diablo.
Yea, the graphics are similar, but I think this one is aiming at more of an MMO experience(correct me if i'm wrong), but c'mon, it's diablo. Even if it is just new content and slightly improved/new graphics, it will still be a great game from a great series.