SNES has a special place in my heart because some of my favorite games are on it. FFVI, FFIV, Chrono Trigger, Yoshi's Island, DKC2, A Link to the Past, I could go on. I also grew up with that system which makes it even more special.

PS2 was a great system because you had access to the full lineup of PS2 and PS1 games and both had very strong lineups. Most of my favorite games ever are either SNES or PS1 games.

Nintendo DS, like PS2, was great since it played both DS games and GBA games. GBA had some fantastic games and the DS did as well. The DS may have been Nintendo's best system. You could argue GBA had better games but you could play those on DS anyway. I was sad when 3DS got rid of the GBA slot.