Heh, swim knows what's up.
Here's my list:
Turbobs - all time favorite
PSP and Vita - love 'em mostly for Lego games, Falcom goodies, and goofy and mildly pervy JP games.
PC - Dune, C&C, Heretic, Doom, Quake, GTA, Wolfenstein, and Falcoms (especially going forward)
2600 - I had a lot of fun with it as a kiddo, but I wouldn't lose any sleep if I never touched one again.
Gameboy - similarly, it was fun for a few years when I had one but I don't really miss it now.