favorites:
1)dreamcast (sonic adventure 1,2 power stone 1,2 shenmue 1,2 jet set radio, soul calibur, crazy taxi and more.. (Subarashii)
2)xbox360 (gears of war 1,2 halo 3, left 4 dead, lost odyssey...)
3)nds (well you can play all the pokemon's in it :P) (main ones) also mario kart ds is very good
hated ones that I have (or had):
not in order... wii (boring all the way up) psp (only 2 or 3 games ok the rest are ports -.-) ps2 (only kingdom hearts 1,2 and persona 3 (fes),4 were time worthy for me)