Kansas looked pretty good in their Adidas jerseys on their way to an NCAA Championship this past season. Their shorts looked to be an adequate length as well. Anyway, it's not the length of the shorts, it's the "swag" in which the player wears his shorts that matters (and what made the F5 famous), if that's what you're so concerned about. Looking back, their shorts look pretty short by today's standards.
As for your question on what they would look like, Wisconsin, Kansas, Notre Dame, NC State, Texas Tech, Nebraska, Indiana (maybe not since they still go with their traditional look), Pitt, Louisville, Tennessee, and others all wear Adidas so ours will probably look similar. Nike does basketball way better in my opinion, but Adidas isn't ugly (and the shorts aren't shorter either). Plus, we suck, we can't be picky anymore about how we look until we start playing better.