@Dragongirl101 - Oh hey, someone flagged the height thing!
Pokedex sizes are sometimes odd (see: Nidoking, Charizard, Dunsparce) and the anime often flat-out ignores them for the sake of a better picture. I try to go by dex size in general but will adjust if something's going to look ridiculous. For Mewtwo, I have adjusted his height downwards. Can you imagine what 6'7" looks like?? He'd be hitting his head on every door he tried to walk through. In addition, having him at that height would make N look like a manlet when they're standing next to each other.
Wes is shorter than average, which I think is accurate (my estimate from admittedly vague memories of playing Colosseum - far as I know there's no height data for Wes). Assume N and M2 are both around six feet and Wes is perhaps 5'5.