I like Audino. They're cute, and they have a great movepool. Shadow Ball, Psychic, all kinds of elemental stuff... And they're great supporters/annoyers. I usually catch them or let them go. If I need exp desperately, I'll run through the Elite 4 and gets loads of it, with lots of cash, something poor Audino doesn't have. In my game, there will always be at least one Audino.