GB westchase is a good school for BJJ and wrestling... Ulpianos a great teacher plus there are always BBs coming through there, anderson leal world champ bjj and judo trains there a few times a week, Pablo silva teaches there I think one day and is minly at Dracs, and theres a tough BB called brian who is from new mexico I think, and the wrestling coach is an iranian olympian. Erik Wanderlay used to be there and comes and goes, he won the worlds a couple of times. One nice thing about their school is they have tons of classes.
Drac is a great dude, I think he travels a fair bit..there are a few other GBs in town but definitely those two are the two Id go for, if you are a student at one GB you can always drop in at another in Houston for free.
There are other bjj schools in houston as well, but in terms of GB schools you cnat go wrong with either of them, although id prefer not to live south east side where Dracs is.