Probably the V2. They've got a little more than the V1, and they're not too complicated. I liked it when the Tamagotchi's weren't involved with the internet.
a Japanese red Akai iirc..that's what it's called. it has red pixels and is the Japaneses counterpart to the v3 i think. if it has to be English..i would say a v2. They have so much variety..and i adore 'em. :]