I'd say Crystal. Animations, cleaner look, choice of gender, etc. Gold might be beter for those who like ho-oh tho. In Crystal and Silver you gotta catch all three dogs to get him. So people might not like that.
Well I've never caught any of the dogs and I still caught Ho-oh in Silver Crystal is my favourite but I think Silver has the best sprites
Really? then i guess its just in Crystal you gotta catch em all