I actually love the Tama-go, its a great version with the things you can do and the figures you can unlock things with! But the iD L is really amazing also, with the colour screen, and there are so many things you can do. xD
I have a Ositchi and mesutchi pair ( don't like them) Morino, Angelgotchi, P1, P2, V1-v6 and Tama-Go. I want a ID-L, I just bought one off eBay, that's the one I would choose!