Always liked Masquerain. It's another of Gen 3's really vivid, "Let's capitalize on all these colors we can use now!" Pokémon, and has a very striking appearance for a bug. It's one of the more true-to-life applications of Intimidate; that's what those huge eye-like antennae would be used for. I suppose it's disappointing that it doesn't remain Bug/Water, but it's not as if Bug/Flying doesn't make sense for it, and they've made up for the Bug/Water thing now (along with buffing Masq, which is appreciated).