Flygon/Squirtle
Fennekin/Froslass
Kricketune/Lopunny
Cyclizar/Sobble
I prefer Bellibolt to Flygon, but barely. I don't like Chansey at all, but think Squirtle is a decent starter. Sorry Bellibolt, if it wasn't so close I'd swing the other way.
Sobble is the only one I like in the fourth match.