Wow, I hadn't tried Burger King until recently and it blew all the other competition out of the water! It's actually so flavourful and each burger has it's own distinct taste... they don't all taste the same (like at McDonalds) or have no real flavour (like Wendy's).
The only reason they don't get full stars is that you DO pay quite a bit of money, for a fast food joint... the burgers are huge... but I don't really need that much and 1/4 or more gets wasted.