Strip them, polish them, and leave it at that. That is the #1 problem we have with the clearcoated (and chromed) aluminum wheels we sell, the finish peels off. Polished wheels will keep their finish much longer, as long as their maintained.
However, if you do want to refinish them, you might check out
this kit form POR 15. I've never used it myself, but I have used their other products with good results.