There is no answer to the question of best colleges for AFROTC because of multiple reasons.
1. The cadets.
~ ROTC units are like families. They have a unique chemistry/bond, thus someone can say TAMU is the best, but impo it is the best for them.
~ If you don't feel comfortable within the unit than it really isn't the best in your eyes.
2. AFROTC units vary in size
~ They are ranked out as large, medium and small. HQ AFROTC announces winners every year.
~ It is unusual if any unit wins it back to back, thus this year it could be TAMU and not again for several more yrs.
~~ DS's unit won best large unit his freshmen yr, but not again until his senior yr.
3. Criteria for the cadet's AF goal.
~ To commission, the cadet must attend SFT. It is not a guarantee to be selected. One must ask what is their percentage that attends and then compare it to the national selection rate. 80% may sound great, but not so much if 90% is the avg.
~ Career goal, i.e. rated. ERAU has always touted that they have the most pilot selectees after USAFA. Again sounds great, but when you look at their percentage rate it is equal to the national avg. It is just that their unit is so large they have the physical numbers due to their size, but it is not as if your actual chances increase by attending ERAU.
Finally, I would never look at the best, because the best impo is the one where the college and the unit make you feel happy to be there. ROTC is not full time, albeit it does take up a lot of your time, part of your life are the academic and social sides. My DS went to UMDCP, he loved the campus, loved the location(close to DC), loved his academic program, loved that it was a big school, along with the fact that he enjoyed how they had military fraternities. My DD went to VT, both have great AFROTC programs. He would have hated VT. If VT shut their doors tomorrow, Blacksburg would become a ghost town imo. He also decided for him that he didn't want that SMC life, where you are required to live in a certain dorm for 4 yrs., and where as a cadet you must be in ROTC and the Corps. My point is both are great, but if you don't fit than you will risk your end goal, which is to commission.
~ Look at old threads here. There are many that contain kids or parents every fall and spring with I hate it here, but I have a scholarship can I transfer to another school and keep it? I love my ROTC unit, but academically I chose the wrong major and now I am in jeopardy of being placed on academic probation. So on and so forth.
You need to find the best for you. That means for every college tour you take contact the det at that school and ask to meet the cadre. Also ask them if you can meet some POCs that are in your intended major program, or the career field that you think you want. They have ROTC lounges where you can talk and hang with them for about an hour. ASK that your parents do not hang with you and the cadet(s) ----otherwise if they do stay it is more like a dog and pony show than a couple of college kids hanging out.
~ Tell them you will meet them at X time at a specific location. The positive of this is from the ROTC building to the meeting spot you are walking the campus by yourself and you can imagine how it might feel next yr when you are there. It is where you can think and get a feel for the campus by yourself before being asked a million questions from the folks, such as, what did you think, do you like it more than X, why, etc.
Hope that helps.