Is Christie's still good? Have not been in years. That would be my pick for best value burger. The best burger I have had in Starkville was at Restaurant Tyler on a brioche bun, but apparently that was a special and they normally use potato bread buns. Just not as good.
Bulldog Burger is ok, though overpriced for what you get. At least the fries are hand-cut. Sourdough is too sweet for hamburgers for me. That is why I do not like burgers at Mugshots or Harvey's. Mugshots also used to season their meat with a mix I did not care for. Fortunately they seem to have stopped that.
Best burgers I have had in MS so far are at Kermit's and Neon Pig in Tupelo. Also best fries at Kermit's. Fair warning --I do not eat the smashburger at Neon Pig without telling them to hold all the sauces and put the pickles and pickled onions on the side. The flavors are too strong and cover up the unbelievably awesome flavor of the meat. Mostly I buy the smashburger patties at the butcher counter and cook them myself at home. It does not get any better than that,