You do realize the BH and SBH are the same thing, except some SBHs have a dragoon grip frame....
Essentially the same gun, not exactly the same gun. For decades, Ruger only offered the Super Blackhawk in one configuration and barrel length. Currently, they are offering the Super with "Blackhawk features".
The Super (and I'm talking#1, New Model guns, and #2, the "classic", the only variant available for all those years) is the same frame as the Blackhawk. The differences are the unfluted cylinder, the steel ejector rod housing, the Dragoon style grip frame, also steel (which is slightly longer than the Blackhawk frame, so grips are not interchangeable), and the different hammer, and grooved trigger.
Other than the style of the Dragoon grip, the differences are intended to make the gun easier to manage with .44 Mag loads. Steel where the Blackhawk has alloy, unfluted cylinder, for weight. Larger hammer spur in a different position than the Blackhawk, and a grooved trigger where the Blackhawk is smooth (not an improvement for me, personal opinion)
I like my Super Blackhawk, but I'm not crazy about the feel. Probably due to 30+ years experience with a 7.5" Blackhawk .45 Colt. With the different hammer and trigger, the "feel" of the gun is just enough different to seem odd, to me. Totally personal preference, and what I am used to.
Congrats on getting a "Super B", they are fine guns.