What's with the hate for these guys? Honestly, they make perfect sense.

Diancie looks like a fairy, which it is.

Volcanion looks like a merging of a furnace and pumps, which fits the fire/water theme perfectly and is pretty much the best way to pull off the design.

Hoopa resembles its namesake: hoops. I can't see how you expected anything different.

Plus, I think their designs have a lot of life to them. Diancie looks elegant, Volcanion looks tough and menacing, and Hoopa looks mischeivious.

Whoever dislikes these guys is under the false impersonation that all Pokemon have to look like Lucario.