2 of my favorites are on your list
M10 (mine's a 4")
and a 4" 686 (one of THEE greats)
Of those on your list I believe that the 686 is the easiest to learn to shoot well. It's a fairly heavy revolver and can shoot light target wad cutter 38s to full blown 357 Magnums once you get proficient. A great choice for a first revolver.
I would also suggest becoming a donor to this site