TANABE SUPER RACING MEDALLION BWHAHAHA!!! it ahs the 2nd best power gains, and has a really deep, rich tone to it.... plus you can get it for about $450 and free shipping on one of the sponsor's sites..
i say TSRM, since you can always add in the silencer if you get sick of how it sounds, to quiet it down a bit, with just a nut and bolt.
edit: obviously, the TSRM was not one of your choices. those 3 u listed are not "tunable" (sound), so i guess TRD. all exhausts will yield similar gains (+/- 1 or 2 hp), so get the one that you like (the look).