Horse and Angel. Hands down.
Although I haven't tried the Cube's. I find Gecko's' chile cheese fries to be tasty, but just a little on the too rich side.
the best chile cheese fries in town--well, my favs at least--are at el modelo. but I always get red. I assume their green is just as good.
and now I'm craving el modelo. geez, thanks krista. ;)
also, in a similar vein and because people keep mentioning them, the chorizo blue cheese queso at gecko's is awesome.
Julian's Burger's -N- More :)