I have a Magnaflow single in / dual out muffler on my HEMI. I like the Magnaflow sound vs. the Flowmaster. It just sounds a bit more refined and is less intrusive in the cab.
Drone can be a problem with any aftermarket muffler but it's easy to attenuate with a resonator at the end of each tailpipe.
I have a MegaCab so no MDS so no drone.