I'm sure it been asked a million times but is there a difference in the quietness of string material??? What would be the quietest?

Really depends on the bow/arrow combination.  Generally, I find the fast flite materials quieter (compared to dacron) on my hybrids and longbows.  On recurves, it's a toss up.  The fast flites might be just a tad noisier.  Not a big difference either way.  Pitch is a little different with one vs the other, but not a big difference in overall loudness.  When the bow will handle it, I prefer the fast flite materials for their increased performance.