I am a Coke snob. When the waitress asks me if 'Pepsi is okay?', I flat out tell them 'No.' 

Pepsi is never okay lol. If I'm going to drink 'cola' it has to be 'Coca-Cola', otherwise I get something else. I don't mind the rest of PepsiCo's offerings as Dr. Pepper is pretty good and Schepes has an excellent Dark Ginger Ale. I like Mountain Dew and Crush products as well, but Pepsi is awful in my opinion.

That said, Nestea and Barq's blow Brisk and Mug out of the water as well. And regular Canada Dry is better than regular Schepes in my opinion, Canada Dry's Blackberry and Cranberry ginger ales are also very good.