I agree.. It all depends on what type of riding you do. The Toomey, Pro Circuit and DMC are all around pipes.. while the PT mid is a bottom end pipe. I've never used the FMF SST's so I can't comment on them. Also a builder's motor can favor one pipe over the other.. So there really isn't one pipe better then the other its just a matter of where you want the power and the fit/finish/looks of the pipe.
I prefer PT pipes myself.. For tight woods and MX (bottom end power) I like the PT mids, and for open trails, TT racing and Dune riding I like the PT Hi-Rev pipes.. And I think the chrome is the best out there next to buying pipes bare and having them chromed yourself. I like the 916 for a all-around pipe. I think its unique in looks and the way it sounds. Thats why I like it over the Toomey's