Wii but it's hard to say. I love the fact it plays NES, SNES, N64 (downloaded) and GC games on top of Wii games and other classic consoles, but if Wii U ever gets its' eShop like that with GC games for download it will be my favorite. Currently my best memories with GameCube
XBOX ONE/Wii U/3DS/PC
RIP Iwata 12/6/1959-7/11/2015
Thanks for all the great memories!