Definitely Tahiti, but your AF tix will only get you as far as PPT, and then you must take an Air Tahiti (NOT Nui) interisland flight to Bora Bora (BOB) -- about $400 per pax R/T. I'd suggest going to Moorea (MOZ) instead; a $15 30-minute ferry ride from PPT, and just as beautiful, with more to do.