Or so bad that I want to smash my face in with a brick for paying for it in the first place, which is exactly how I feel about Scheisse....err..Smashburger. Really gotta +1 that comment up there...as much as I do like In and Out, this really is more "which shit do you prefer when you're backed into a corner" more than "Which of these are actually GOOD?"
And on record as a native and still Texan...let me just say...Whataburger is way, way overhyped. It's great that the food always comes out hot (except fried pies. Good luck with that.) and fresh, and the burgers are FREAKIN' HUGE....but really at the end of the day, it's still the same old thing you could make at home. Whataburger to me shines more brightly with their other offerings aside from straight burgers. Oddly, one of the best things they have is just a condiment....spicy ketchup. But their burgers either tend to be on the "ridiculously fatty, dripping, and awesome" or "dry as shoe leather" depending on the location, and I've very rarely ever seen a middle ground. And they're *extra terribad* when they're dry and overcooked.