1. Super Smash Bros. Brawl
I've loved the SSB series since the moment I first played it, and SSBM turned that love into obsession. I can't wait to take on new characters with other new characters in all the new levels.
2. No More Heroes
Killer7 is my second favorite game of all time. And, being by Suda51, this game is shaping up to be a worthy successor to it, even if it's not a sequel.
3. Mario Strikers Charged
I never did buy the first Mario Strikers, but I have played it, and I absolutely love it. Online play and even more options make this a definite purchase for me.
4. Battalion Wars 2
I looked forward to this game for a while before its release, but due to financial issues, I didn't pick it up until it was ten dollars at Gamestop. Lucky thing, because it wasn't worth fifty. However, it was intensely fun. The addition of multiplayer combined with Wiimote aiming means I'll be picking this up as soon as possible.
5. Mario Galaxy
I'm still kind of reeling from the disappointment that was Super Mario Sunshine. But this seems to clean up in all the right places. I might not buy it at launch, but I'll definitely get it sometime.