Nostalgia-wise I have to agree with a few others, my (parents') SNES was the console I started playing games on when I was two years old, and a few of those games I haven't personally considered topped by modern games yet.
Current use-wise, though... I'm not sure if I could pick between my top four handhelds: 3DS, Vita, DS Lite, and PSP. The 3DS has some great games, as does the Vita (which is an amazing handheld despite not being used to its full potential). I'm not sure if the better hardware of either make them fully beat their predecessors, though. With two flashcarts in my DS Lite I can carry my entire DS and GBA library around with me (and man did those libraries contain some great games). With a few giant memory cards I can have all of my PSP, PS1, GBA, and SNES game with me as well.
Nostalgia-wise I have to agree with a few others, my (parents') SNES was the console I started playing games on when I was two years old, and a few of those games I haven't personally considered topped by modern games yet.
Current use-wise, though... I'm not sure if I could pick between my top four handhelds: 3DS, Vita, DS Lite, and PSP. The 3DS has some great games, as does the Vita (which is an amazing handheld despite not being used to its full potential). I'm not sure if the better hardware of either make them fully beat their predecessors, though. With two flashcarts in my DS Lite I can carry my entire DS and GBA library around with me (and man did those libraries contain some great games). With a few giant memory cards I can have all of my PSP, PS1, GBA, and SNES game with me as well.