I like my stainless 629 Mountain Gun, stainless 686, stainless 60, and pair of stainless (and aluminum) 642s. However I just got a very we'll kept blue model 19. You've gotta love a nicely blued revolver.
In this particular case, i'd lean towards the late 29. Cylinder throat sizes are more apt to be "normal". Plus they are scarcer than that particular 629 variant. (Which is about to lose it's Millett rear sight, BTW.)