I'm sure you've seen some fairly shiny pics of my cars over the years. I've used some pretty good products like Klasse AIO, P21S and the like but...
My favorite go to product is Poorboy's EX sealant with Carnauba. It combines an acrylic sealant with some carnauba wax. Not only does it go on easy and smell like banana, it works in direct sun and buffs out easy. Hell, Poorboy's even recommends applying in the sun. There's none of that powder residue either.
One of our Affiliates (Autopia Car Care), sells it and has a 15% off code (AUCOUPON) right now on everything in stock.
Check it out here:
http://www.autopia-carcare.com/poorboys-ex-sealant1.html