I have never understood the objection to full moon clips. If I only had one or two clips, I probably wouldn't want to bother either, but they are cheap, so get a couple of dozen. Load them before you leave for the range, and spend your time shooting instead of tediously loading one round at a time.
Same.
I have both AR brass and speedloaders for it, but have never used either.
Given my druthers, all revolvers would utilize moon clips.