Coke is the only beverage officially approved by the higher staff. :>
But yeah, I won't drink Pepsi unless I order a Coke at a restaurant and no one says "we serve pepsi products". :C And even then I'll just sort of nurse my drink and end up having water. I can't stand how Pepsi tastes. It's like a watered down version of Coke--as in, you get Coke from a fountain and then all the ice melts in your cup. Then it tastes like Pepsi. :|