Oh dear, there a ton of games I'd like for my Wii right now. First and foremost is probably Fire Emblem: Radiant Dawn, because it looks completely awesome, and I've been in to Fire Emblem recently. Beyond that, well, Mario Galaxy looks plain awesome, Mario Kart Wii and/or Brawl would be good multiplayer games. There are tons of other Wii games I could list, but those are definitely the ones I want most.
As for DS, well, I haven't been looking for DS games for a while, what with my having purchased the Wii not too long ago. But I would really like Fire Emblem: New Shadow Dragon. Other than that, well, New Super Mario Bros would be cool.
I want the legend of zelda collector's edition for the game cube. It has OoT, MM, AoL, and LoZ! I want all four for 1 system, it just comes in handy. I also want super smash bros melee, and super mario sunshine (all for game cube)
A few of these games haven't been released, but I still want them
PC -Assassin's Creed II
-Metal Gear Solid: Rising
-Street Fighter IV
-Zelda Wii DS
-The World Ends With You
-Pokemon Heart Gold/Soul Silver