You buy a Hardy to have a Hardy. Or should I say you buy a Hardy to hear a Hardy. There is nothing like the sound of a hot fish on a click and pawl Hardy. I can't speak to the Sovereign but can to the St. George, Marquis Salmon, Perfect and Bougle. There are better made reels out there and even some that cost a hell of a lot less. There are few reels out there though with the personality of a Hardy.
For what its worth, if you want a disc drag reel, I would look elsewhere. There are a number of good disc drag reels out there including the Velocity, the Teton and Tioga reels, Redington, etc.
The old click and pawl Hardy though is tough to beat as a workhorse reeland they do have style. I know that in recent years that disc drag reels are all the rage and they are certainly nice. For most of the fishing we do around here though, they are overkill. Contrary to what you can read on the internet, you don't need a disc drag for steelhead or trout. Do they make it easier? Probably yes, especially if you are not used to fighting bigger fish. And if you are going for salmon in the salt, I would go disc and certainly keep your non-saltwater Hardys away from the salt.
I fish both Hardys and Tetons for steelhead and on the Teton's, I never set the disc drag any more that to prevent over-run. I fish both because they have a nice sound and this lets me know what is happening with the fish. The Teton's go on my large speyrods and Hardy Bougles on my 7 and 8 weight speys.
I also own a Redington AL 11/12 which is a very smooth and servicable reel but is essentially silent on the outtake so it is for sale if anyone needs one.
One final note, if you are looking for a silent Hardy, there was a silent click Marquis made referred to as the poacher's model. They can sometimes be found on e-bay.
Hope this helps.