All Texas schools match well within Texas. The advantage of better schools is that they can match better outside of Texas. You won’t find much difference in matching a good residency even at TCOM the DO within Texas.
Splitting hairs by prestige and opportunity, McGovern>Long>Dell=UTMB>TCOM=UHCOM. McGovern, Long, UTMB, and Dell are often placed in the same “tier”, so how I separated them was by how happy I’d be there. I value P/F a lot and am not going to pursue a surgical subspecialty, so it went Dell>UTMB>McGovern>Long>UHCOM>TCOM.
Another important factor for me is how exams and USMLE prep is setup. Dell has fantastic, like T20 level, Step 1 scores which show something right is going on there for sure. UTMB and McGovern have NBME style exams which make studying for Step a little easier. Long has in-house exams with material irrelevant for the USMLE and weekly quizzes.
I’d say choose the city and curriculum where you’ll be happy!