Well, it's easy to make 3 Pokemon teams that balance each other out (Ice, Psychic and Bug types), but I think we need to wait and see how the moves will work. We've seen (what looked like) rock slide effecting all 3 opposing Pokemon and we can assume earthquake will hurt everybody, but other moves are still in the dark. Some might effect on two opposing or a part of the field that includes 4 of the 6 in battle.
But still, I like my Jynx and Ampharos as a team. I could probably throw in Infernape in to that to help balance it out.