I don't know how it rates compared to other schools for Computer Science, but about 90% of all the kids in my generic engineering classes at UNT were all CS majors of some sort. So at the very least UNT accepts a ton of kids to their programs. That could be good or bad, but I would say it means he'd definitely get in. Oddly enough, the CS majors are all fresh out of high school aged kids, and most of the electrical and mechanical engineering majors are late-20s or over.
I know a bunch of people that were CS majors of sorts at Full Sail when I went to UCF. I know Full Sail used to be primarily computer animation and stuff like that, but I am pretty sure they do more general programming now too. That area of Florida is horrible though.
Oh, from my experience, try to get him to take most of his pre-reqs at a community college. Get a course list of what he needs from whatever school he decides on, then knock out as much of the pre-reqs as he can at a much cheaper tuition rate (unless he gets grants, then whatever).