I have to be honest and say I don't like any of them. I don't really like their appearance and can't see a use for them in battle.
None, I don't like any of them
Blegh. Annoying ugly marketing devices.
I'm not really into the elemental monkeys, but if I had to choose one, it would be Simisage.
I don't like pure types. Most pokemon on my battle team are mixtures of different types. Except for Musharna. I had a Pansage which I levelled up to 30, but I just gave it up after a while - it wasn't very effective. I ended up catching Virizion with a single ultra ball, and well... he hasn't been in my team since.