I got the feeling that UTH had a more cohesive student body compared to UTSW, although the students that I bumped into at both schools seemed relatively happy and well-adjusted.
Hey there-- I'm a current MS1 (currently in the middle of this dreaded Block III + Finals multiweek testing extravaganza everyone is fretting about) who thought he'd pop his head and give his $0.02 along with an offer to field questions via posts or PMs.
Without taking too much time away from my studying-- I will say this: I think the above quote is very true. Obviously (and this is true of 99.99% of medical students who give their opinion about their school's class/curriculum/facilities in comparison to any other school) I have only experienced what we have here in Houston-- but I have worked in research at Baylor and have many friends at other schools. I'd say our class is very cohesive, friendly towards each other, and interested in propelling each other towards being successful as a class, rather than as individuals. You'll hear about the Google Group, the CD full of resources, the MS2 buddies who hand down textbooks and advice, and the tutoring systems, the pre-school retreat with the games and skits and costume party-- what you won't hear as much about is the informal review sessions put on my MS2s, the faculty member (and MS2 pedagoges) who spends a cumulative week's worth of extra time (and here I mean 24 h x 7) helping MS1s preparing for anatomy practicals, and the faculty mentors who invite students into their homes for Thanksgiving dinners.
I've spent time in organizations that focus on fostering a sense of community and shared vision among their members, and realize that difficult experiences forge strong bonds no matter what the context is or what the school provides-- medical school is difficult, and so it lends itself to that happening organically. But I really believe that the adcom here does a good job selecting a student body with an emphasis on *people*, alongside the usual metrics.
As far as the whole curriculum thing goes, I think there's a grain of truth in what I heard at one school (not UTH, actually) on interview day-- we're all studying for the same big test at the end of basic sciences. The amount of work you put in to preparing for that big test will correlate strongly with how you do on it-- the average at UT Houston speaks for itself with respect to how well-aligned our curriculum is with the USMLE boards. There is streamed video of lectures, and no mandatory attendance with the exception of a few things, so there is a lot of flexibility in terms of how you approach the volume of work-- but the amount of work will be fairly static no matter where you matriculate. I don't think the design of the curriculum matters that much. As someone interested in education theory, I thought that the curriculum at El Paso was really innovative and sounded awesome. For some people, if you know a lot about how you learn, that might be a lot better-- if you love the idea of PBL (and in my experience, even if you love the idea like I do you might not love it in practice), maybe UTMB would be great. But other than that, it's six of one and half-dozen of the other. Places like UTH and Southwestern, like most other schools, are grounded in traditions built upon traditions. They're slowly becoming more integrative (ask about Clin Apps and TBL on your interview day) and some people like that, others don't-- but for now, medical school is what it is, and until the Flexner Report Part Deux, the basic principles underlying it aren't going anywhere.
So anyway, long story short-- I'm very happy here, and I'm someone who takes education very seriously. School is hard. But it's not impossible, and the faculty and other students here go out of their way to help you make it through. Please feel free to shoot me PMs with any questions, or better yet post them here-- and after finals I'll do my best to answer them from the perspective of someone halfway through first year.