I have the Super Black Hawk with the square back trigger guard. I put Pachmayr grips on it and it is great. It was not nice to shoot before that. I have S/A and D/A revolvers and always shoot S/A as it is hard to get used to the hard trigger pull of D/A compared to the light touch of the S/A trigger. I guess a person could get used to it but why bother. Having said that the S/A is worth considering but is slower to load and unload. I have heard that the D/Actions can have trouble with the flip down cylinder. I am a big fan of Ruger revolvers.
I guess I should say I rarely shoot the .44Mag, nice to have, may never sell it, but rarely shoot it. What I'm saying is I don't think it is worth it to spend big $$ on one.