For what it's worth, the only garb that is D1 related that most have seen him in is TCU gear. I for one don't think he ends up anywhere but TCU. I have followed as closely as possible without pay-site access. The one thing though that I have garnered from multiple pictures, scenarios and what not, is that TCU is the only school that gives him the depth at RB that he knows he will not get run down and over utilized. That and academics is what is is looking for the most. Texas and aTm may have "better academics" but they do not afford him the opportunity to be in a SOLID running back rotation of more than 2 serviceable backs. Texas has 1 and aTm has 2 serviceable backs.
All things being equal, education and less wear and tear-wise, TCU is the most logical choice when it comes to making a decision based on his criteria. The Gray's are concerned with the longevity of their sons' career over the long term versus the short term, immediate gratification. They are using logic and weighing facts with variables that are both known and unknown, from each school. I trust that he makes a solid decision and not one based off of peer-pressure.
Just my 2 coppers.