While i think yellow was a terrible choice for the pole holding Link, i would buy all of them with some exceptions (Marth and Peach). I think Link is bad too, but i know i am going to buy it for Zelda U.
I am going to wait a little before buying Link, maybe in the second edition (if it ever happens) they change the stances.
The following i still love and would buy anyway:
- Pikachu
- Kirby
- Fox
- Mario