Who Makes The Best BBQ Sauce?

Now that it is cook out season, I am starting to experiment with different BBQ sauces. So far, we like Sweet Baby Rays Sweet and Spicy and Famous Dave's Rich and Sassy BBQ sauce.
We pretty much agreed that Hunts BBQ sauce of any flavor was not any good along with any generic BBQ sauce.
So, what kind of BBQ sauce do you like? Sauce that you can go to the local grocery store and get instead of sauce you only can get at a restaurant. Many people would like to know, especially with the 4th of July coming up next weekend.
Thanks for your answers.