I do give gen 5 it's uniquity, and like I said, there are certain parts and pokemon that I do like a whole lot.
I dunno what it is that I can't stand though. =/
so I'll focus on what I liked about it.
I liked that they are still putting in darker things; the rumors in Lacunosa about a pokemon that comes and eats people and pokemon at night, Chandlure stealing peoples souls to use for fuel. I really miss things like that, that they used to have pretty commonly in the older games.
Bridge Village is one of my favorite places. I really like how they focused on being able to change the background music through interacting with NPCs.
The strange house. I've always loved the ghost houses in the previous games, and this one didn't disappoint.
Sigilyph, the Solosis line, and the Deerling line are possibly the most unique, amazing ideas I think that came out of gen 5 pokemon wise.