Borla is the sheezy, I have it and love it. Its a quality product, everyone who owns one is more than satisfied with it. Though owners who get something else are sometimes left wanting something better.
if you look at the results of the shootout, one thing should become really obvious. basically, any of the decent exhausts are going to get you close to the same amount of HP and torque gains. that choice really comes down to the following:
2) material used (stainless lasts longer)
3) quality of welds
5) ease of installation
7) and most importantly.... TONE: this is what it really boils down to for most. here's a general rundown from what i can remember.
Mellow: Borla, Magnaflow, HKS (but a lot of people here are HKS haters so don't expect a ton of people to recommend it), FocusSport
Mid-range (almost "rally" kind of sound): MBRP, Vibrant
Crap: Pacesetter. Just stay away.
I'm sure others will chime in on my list (btw, where would you guys put bosal?), and you can get tons of opinions on everything, but if really boils down to what you want.