North Star,
I went with the 4 inch Rineharts on my SESG. Normally, I am a huge Vance and Hines fan, but wanted the look of the Black end cap that the Rineharts have, since it is very much like the factory exhaust. I am just like you, in that, I prefer a sound that is deep and loud. Not obnoxious, attention of the law, no baffle loud; but loud enough for me to be noisy in a crowd of other bikers so I don't have to hawk the tach to know my bike is there.
My thoughts:
I absolutely hate any exhaust that sounds tinny (like it's coming through a coke can). I think the 3.5 inch Rineharts are tinny, therefore I waited to get the 4 inch ones. The 4 inchers are deep. They have a more "refined" sound than the Vance and Hines, but I don't think they are loud by my standards. Every Samson that I have ever heard is definitely louder, but I have never seen a set of Samsons that I like the look of and they seem to show heat damage very easily (opinion). Personally, I still think that I like the sound of V&H better but I am becoming accustomed to the Rineharts. I do like the look of the Rineharts on the extended saddlebag. I was also able to reuse the stock heat shields from the stock exhaust and therefore the Rineharts have a beefier look to them with those heat shields. Also, I noted that the exhaust clips that you hear online, don't really accurately reflect the sound. You really have to hear them in person. With that said, I did make a youtube video and you can check out the look and sound of my Rineharts for what it is worth: