DS
Scribblenauts - Probably my favorite game this gen, period.
GBA
KH CoM - It's better then people told me, but the main reason I'm playing it is to get a better understanding of KHII and 358.
Wii
TMNT Smash Up - Great fighting game with awesome online, if you like the brawler genre don't miss it.
Spyborgs - looks amazing plays like your standard beat em up, and has some cool finisher moves, but nothing too special here.
PS3
Batman AA - Best... super... hero... game... ever...
MaxwellGT2000 - "Does the amount of times you beat it count towards how hardcore you are?"
Wii Friend Code - 5882 9717 7391 0918 (PM me if you add me), PSN - MaxwellGT2000, XBL - BlkKniteCecil, MaxwellGT2000