Gamecube. Oh that sweet sweet machine.

PS1

That's an interesting question that I've never really thought of before.

I guess I would have to say Gamecube. I had an SNES and an N64, but GCN was when I really really got into games and started to absolutely adore them. N64 was close because of Ocarina of Time, but after that came the time when I connected with a lot of games and further established my tastes.

Game & Watch systems.

N64.
I'd had several consoles dating back to Atari 2600 but the love I felt for that console was ridiculous. All of a sudden I found myself dying to know everything Nintendo and that has carried through to this day. I have been a die hard Nintendo fan ever since and although today I play a lot of games on PC I still consider myself a Nintendo gamer first and foremost...

Arcade games made me a gamer before I ever owned a game system.

But as far as a "home console gamer", then definitely the NES.

I played games for fun starting with Super Mario Bros on the NES

I began to consider myself a gamer with Mario Kart: Double Dash!! on Gamecube

Ps1 for actual console. But it was probably the gba that made me a gamer, AMAZING system

PS2. Second best system ever made. The PS3 is obviously on top

Started off with a SNES which also got me into gaming.