I had an early Christmas with my son last weekend (divorce family we do it separately, mom has him actual Christmas this year)
I gave him Skylanders - he went apeshit for it, he's officially obsessed and the rest of his life will be a descent into Skylander video game addiction.
It's actually a pretty neat setup, a friend of his has the game already and he got to try taking his Skylander toys, used on his PC version, over to his friend's house and used them in-game on his friends Wii - the cross platform feature works great!