The only thing I really have to say is that you'll want to ditch Nidoking's Life Orb for a Choice Scarf. It's mainstream, but very efficient. You don't want to risk getting outsped by something that could easily take it out. (can't think of a good example at the time) Everything about it is fine aside from the item. I'm not so sure about altering the EV spread.
For Vaporeon, you should also get rid of Ice Beam for Toxic and give it the Leftovers as mentioned above. You already get decent Dragon coverage from Gliscor's Ice Fang and Dragonite.
For Vaporeon, you should also get rid of Ice Beam for Toxic and give it the Leftovers as mentioned above. You already get decent Dragon coverage from Gliscor's Ice Fang and Dragonite.