South Fallsburg has a very yeshivish crowd. The alumni typically end up in BMG, and go on to either stay in learning or get a yeshivishe job.
Toras Moshe is geared to getting the smart individuals who are on their way to college. Some of the alumni end up going to college, some don’t.
Torah Vodaas really depends on whose shiur you’d attend. R’ Savitsky’s shiur attracts people similar to South Fallsburg (not as “yeshivish”). R’ Reisman’s shiur is in English, has less yeshivish people, a lot of whom go to college or will go to college.
As far as where the best learning would be…I don’t think that should be posted here.