Um... I'll jump on the PS2 bandwagon. Many of my favourite games were on there and it was just a beautiful system.

Next up, maybe the PS1.

I'm also a fan of the DS family. I'm always playing it. The 3DS was good because it was backwards compatible with the DS, though it does lose the Game Boy Advance compatibility. Annoying, but the DSlite does, so it's okay. I am still annoyed with the PS3's apathy towards backwards-compatibility.