Beck's Prime is definitely up there, granted have not yet been to Hubcap, but Beck Prime is one of the few places that actually cook the burger perfectly. As much as I like places like Lankford Grocery, they and many others often times overcook the meat.
Dear Lord. Nasty goodness. One pattie with chili, cheese, onions, and 2 grilled franks on top. Enough to keep good health and probably demons away.
They have a new Steak N Shake in Katy thats pretty good. The milkshakes are by far the best i've ever had especially the butter pecan shake and the mint chocolate chip shake. I'm partial to Five Guys' simplicity, though Beck's prime and the Kobe Burger at Perry's are great for high-price stuff.