I visit a lot of detailing forums and websites. I have no favorite brand. ClearKote is good along with PoorBoy's. There are a few others. It seems like the companies change their formula's ever so often, sometimes for the better, sometimes for the worse. So I do think there is one true best over the years. Meguiars also has a good brand, but sadly most stores do not sell it. Their professional series I've used with good results.