Who would you pick?
The RKBA issue has been considered an "x-ray" issue by some. How a candidate stands on just that one issue often gives you a deeper insight into how they view the rest of the Constitution. Notice that all of the pro-gun Democrats are pretty moderate in other areas as well.
We're Conservatives though. We should OWN this issue. We're the "God, guns, and guts" Party. People like Michael Steele getting all wimpy over it isn't going to rouse the Base in any meaningful way.
Private property, taxes, and the proper role of Law in a persons life are all important, but if you can't defend your life and property to begin with, it's kinda moot.