I'm very much in the yes we have free will camp. Judgment and decisionmaking happen. Descartes said "Cogito ergo sum" -- "I think, therefore I am" -- I've taken a similar approach to free will.
Besides, on the off chance we don't have free will and the universe is purely deterministic, you haven't lost anything. Why argue against free will? Making that argument only does something significant if we live in a universe with free will. If it's all deterministic, your judgments are already settled and automatic. You gain nothing in the no-free-will universe because you have no choice in that universe. Asserting your free will -- heck, just call it "will" -- this can only be helpful.
It's like Pascal's Wager without the opportunity cost. Declaring free will costs nothing. If you're right, it's useful to acknowledge and assert your will. If you're wrong, well, you were going to be wrong anyways, eh?
So, ok. Me on free will -- "Does it exist? Yes."
But I do muse over the mechanics of it. Clearly physics and causality reign in the universe; indeed, the universe seems to simply be physics and causality.