1redneck, the Blackhawks/Super Blackhawks are capable of being just as accurate as the Redhawk/SuperRedhawks. Comfort is a very subject thing, personally I find the Super Redhawk to be one of the easiest shooting 44's around - it's much easier on my hand than the small Blackhawk grip. The recoil is different between them, the Blackhawks tend to roll up more (which beats up the pinky finger of my shooting hand) while the Redhawks come back more - they still rise make no mistake, but the recoil comes back into your hand more.
The Ruger Bisleys handle recoil much better than the Blackhawk/Super Blackhawks do, in my opinion. I'm going to be converting my 45 Colt Blackhawk to a Bisley grip soon to make it more comfortable to shoot the big loads.