I really like the Donald Trump weasel and the grub, I just hope it doesn't turn into another useless butterfly or moth. Would be nice to have a bug/ground pokemon.
Wobbuffet. Looks great, is unique in how he's played, amazingly fun ( maybe not for the opponent ) in random wifi battles and caused absolute mayhem when he got Shadow Tag in gen 3.
I am really, really happy that Shadow Tag isn't banned on console. Nothing can replicate that feeling of facing children who have never met Wobbuffet in battle and countering / mirroring them for a 1-hit KO.