I'm a bit of a burger connoisseur and I do agree, Sonic burgers are horrible, for the most part.
The best? In-n-Out, Carl's Jr., 5 guys.
Not worth the price and a tip? Red Robin
Okayish but sometimes tastes like the gas they use to "flame broil" it? Burger King
Do you like a salt block in a bun? McDonalds
Most local Mom & Pop burger joints make better burgers than the chains. Out here in Portland a favorite offering is a fried egg on the burger -- suprisingly tasty.
CAN'T BEAT 1/2 price drinks and slushes from 2-4 in the afternoon, get a 49 cent jr burger, best value around!!!!!
Have a 4 year old, they have the best 99 cent jr sundae to boot (with m & m's) , great value....