Here's my opinion...
Go with the Hooker system from Jegs or Summit. Costs less than $300 delivered to your door. I installed it myself laying on the ground in my garage. It was a bit of a pain, but isn't everything when you do the work yourself without the right equipment. In the end, it was worth it. I think I did a better job than a muffler shop would have done because I took my time.
I've had the stock exhaust, a Borla exhaust (i.e. Borla mufflers on the stock Y-pipe), a BGC 2.75" exhaust with ultraflow muffs and now the Hooker. The Hooker with the Aerochambers is very quiet...almost as quiet as stock. I removed the BGC exhaust with the ultraflow because it was too loud for my tastes. I had it on the car for like 6 years/45k miles. It's not stainless, but when I removed it, it was still solid...just some surface rust. I expect the same from the Hooker. I don't regret getting the Hooker even though my BGC exhaust was fine. It was just too loud. I also don't notice any real drone with the Hooker and Aerochambers...at least not compared to the BGC with ultraflows.
No comment on stainless. If you want to spend the extra $, go for it. I just don't necessarily think it's worth it. Aluminized steel lasts pretty long too.
And finally, most of your aftermarket choices are going to come with dual muffs. I only know of the Gardner stock replacement and ATR's 3" crossflow system that come with a single muff. There may be others, I just don't know about them.