Sega Master system. (played a bit of nes, but nothing especial)
Nintendo Super Nes. ( hands down)
Sony PS1. (hands down)
Sony PS2. (hands down)
Sony PS3. (Microsoft xbox 360 almost did it...)

Gen 8: Wii U (So far --owned em all)
Gen 7: Xbox 360 (owned em all)
Gen 6: PS2 (Owned PS2, Dreamcast, and Gamecube)
Gen 5: PS1 (Owned PS1 and N64)
Gen 4: Super NES (Only owned SNES)
Gen 3: NES (Only owned NES)
Gen 2: Atari ??? (Didn't own any)
Gen 1: Too young to play games

Gen 3: Sega Master System
Gen 4: SNES
Gen 5: N64
Gen 6: Dead Tie between the Gamecube and Dreamcast (Love them both to death). Gameboy Advance is not far behind either.
Gen 7: Dead Tie between Wii/PS3 (Even though my brain says the PS3 was the better console, my heart still belongs to Nintendo )
Gen 8: 3DS

Gen 4: SNES
Gen 5: PS1
Gen 6: PS2
Gen 7: PS3
Gen 8: PS4

Shocking, I know.

Haven't played pre-gen 3 (at least not enough)
SNES
PS1
GC
WII
WIIU (so far)
This is without handhelds, correct?

Gen 3: Nes
Gen 4: SNES
Gen 5: PS 1
Gen 6: PS 2
Gen 7: PS 3
Gen 8: PS 4

Been gaming on the PC since around gen 6 as well.

I included them... (I dun't give a EFFF)!

Gen 5: PlayStation

Gen 6: PlayStation 2

Gen 7: Xbox 360

Gen 8: Wii U (There's time for this to change; Generation is young.)

Gen 3 : Nes
Gen 4 : SNES
Gen 5 : 1-N64 2-Play 3-PC
Gen 6 : 1-PC 2-GC
Gen 7 : PC (no console for me this gen)
Gen 8 : 1-WiiU 2-PC

N64
PS2
PS3
PS4 (and there is no chance this is changing, not with what Nintendo have been doing)

SNES and NES would be my other choices but I wasnt gaming back then