Ya know, as a native Texan, I should probably feel guilty for saying this. But, Whataburger's BURGERS SUCK! Always have, apparently always will.
Their meat is virtually tasteless and paper-thin, and there's a reason it is. It's some of the cheapest quality-grade purchased in the fast-food market.
Their bun's taste is WAY too sweet to begin with. Then their halfhearted attempt at toasting them fails miserably, and only enhances the sweetness, while leaving 1/2 the bun soggy.
Now, @ 2am on a sunday morning, their breakfast taquitos rule! But I've NEVER been able to understand the "their hamburger's are the best" crowd. But then, like I always say... Opinions on food, music, beauty etc etc, are ALWAYS subjective.