N64 5
Wii U 4
GC 3
SNES 3
NES 3
Wii 2

NES: 2

SNES: 1

N64: 9

GC: 5

Wii: 3

Wii U: 0

I have a huge fucking bias, as you can see.

NES - 2
SNES -2
N64 - 4
GC - 6
Wii - 5
WiiU - 1

Note: I don't hate the WiiU. I just feel it hasn't proven itself at this point.

Wii U: 6
Wii: 2
Gamecube 5
N64:3
SNES:4
NES:0 (didn't have an NES)

NES - 5
SNES - 10
N64 - 2
GC - 2
Wii - 1
Wii U - 0

SNES: 3
N64: 7
GC: 7
Wii: 3

I've never owned a Wii-U, and i've not played on NES enough (even though i've owned one) to have a definite opinion of it.

NES: 2
SNES: 3
64: 4
GC: 4
WII: 4
WII U: 3

NES - 3
SNES - 4
N64 - 5
GC - 5
Wii - 2
Wii U - 1

SNES - 7
NES - 5
Gamecube - 3
N64 - 2
Wii - 2
Wii U - 1

NES - 2
SNES - 7
Gamecube - 3
N64 - 3
Wii - 2
Wii U - 3