"Who Is The Best Travel Program"
Speaking from experience, this is generally the wrong question entirely. It leads to parents and kids getting frustrated, and wasting money.
"How can I get my son to 90mph?" should be the question for pitchers.
"How can I get my son to 90mph exit speed and 30 deg launch angle?" should be the question for hitters.
The next question should be "Who measures those results with radar, instead of making me/kid feel good or get to meet former pros/college players?"
My last child, after I knew better, never played summer "travel" in HS. (Of course, if your kid is a top draft pick, that's a different situation, he will have to do top travel/showcases, etc. to improve his draft number). He played D1.
Time is your enemy.
(Most of you won't heed this advice. Print this out and tuck it away.)