Here are some results from a poll I did some time ago.
All Axioms from FO 30 (36%)
All Axioms from regular inventory 15 (18%)
Mix of Axioms from FO and Regular 27 (32%)
Mix of Axioms from FO & other brand speakers 5 (06%)
Mix of Axioms from Reg. & other brand speakers 6 (07%)
Of course the numbers are only from a small sampling, but it appears the FO, has a slight edge over Regular stock. I'm sure the pattern would continue if we questioned those who don't frequent the forumns.