I have heard good things about Chemical Guys, but I refuse to spend that much. I tend to use Mequiars, but with the new car, I am probably going to get Pinnacle Signature Series II. I have heard a lot of good things, and although it is $60, it should make it several years. I am also starting to use Dodo Juice as the soap and prewax, and I also use Rejex as a top layer protectant, over the normal wax that makes it shine nicely.