[Jeffage]

I would typically bet this first to act, folding to a raise against typical opponents. Villian may call with one pair when he misses his flush draw. He might just call with a bigger two pair. Depends on the opponent though...if you know he will bet any hand if you check and he whiffed then a check is in order since he won't call busted. But typically what happens is, if you check, you get even the donkiest players to play great against you: they will bet hands that beat you and check hands that don't (but that they might have called with).

So you instantly lose value. Obv. player dependant but I'm betting most of the time here. But that's me, I like to bet.

Jeff