I heard from a local range owner that the Taurus RB was probably the easiest .454 to shoot, particularly from a recoil standpoint.
I'd be curious to get feedback from you folks on this.  I really like shooting big-bore handguns.  I'm currently nuts over my DW .445SuperMag.  This doesn't mean that I'm energized by copius amounts of recoil, or guns with a harsh 'recoil signature' (like the Ruger SRH!).
Thanks,