Wow. That sounds nauseating.
Of course, I'm still on the quest for the perfect chili cheeseburger so my judgment may be unsound.
Your quest is over:
Mary's Cafe, Strawn, Texas.
Keller's Drive-Inn on East Northwest Hwy, Dallas, Texas.
I've been on an 8 year quest to find the perfect cheeseburger, and so far, the two best are one I had at some Bennigan's-like place(I forget it's name, but that burger was good!) on the Westbank in the New Orleans' suberbs, and the other comes from a local bar in my hometown. I usually hate ketchup on my burger, but they mix it with Tobasco, and it's unbelievable.