I went with:
FMS shorties 1 5/8"(unequal length) - Dyno tests show very little in terms of power or torque loss over equal lengths without the nightmare installation. Long tubes are also not easy to install and require a special H or X pipe. As mentioned, they are also not good on a car that is lowered. They are the king of power when it comes to a blown or heavily modified engine though.
Bassani X-pipe w/cats, stainless steel - Top notch fitment, stainless lasts forever, I stay emissions compliant, the x-pipe has been dyno proven to see a little more power vs. an H with a supercharger, and the x has a unique sound.
Bassani Cat Back, stainless steel - Top notch fitment, stainless lasts forever, unique sound, no interior drone at highway speeds. The Bassani cat back produces a nice deep, bass like rumble at idle, cruising around there is no interior resonance, when you crack it open it sounds very exotic and it does turn heads. I had a Dronemaster er...Flowmaster American Thunder catback and it was fine for a few years. I got really tired of the interior drone while cruising at a steady speed. It also seemed to clunck against my fram rails when I hit bumps no matter how much adjustment I did. No offense to anyone running a Flowmaster system, it just wasn't for me.
As mentioned, the question you have to answer is "what are your future plans?" That will determine what system you ultimately go for. That way you're not buying exhaust components more than once. Hope this helps.