Gavra, I hate to say this, but today, it is very difficult to “choose” a yeshiva. Unfortunately today, the yeshiva chooses you. YOU apply and if they like your nose they take you, if not you apply to another, and another, and another, until you get in. And then, if you don’t like what is going on you are afraid to say anything because you fear your child will get kicked out, and if your child gets kicked out no one else will take him.
That is what happens in today’s yeshivas.