I like the trainer designs. The boy looks relatively normal after the fashion models we had for the last 2 gens, and he seems like a chill guy. The girl is just shamelessly fanservice and I love it. I just find it weird how one's dressed for the cold while the other looks like a resident of Phoenix, Arizona. Since this region is supposed to be far away, maybe we'll finally get a pseudo-America in the games?
The starters took a bit for me to warm up to, but they're all good. The fire one looks the most unique and I'm tempted to get him because he seems to have a lot more potential, even though Fire-types are horrendous. The grass starter oozes of cool and is already becoming popular, but he seems like he could be a Sceptile-rehash. He's being made specifically for Gen 5 though, so he won't be screwed over by Phys/Spe split. The water one looks like an obvious attempt at capturing Piplup's charm, but he's starting to stand out to me. If he also has a unique dual type, I'm all for choosing him. In general, there's no one here that looks significantly better than the others so my decision on who to start with remains up in the air.