To each their own.
A big thing for me is that a hang-on and climber generally have a larger profile and hunting in the Southeast, where there's nasty pine thickets everywhere, and generally where the deer want to bed, the saddle set up just works better with a slimmer profile. I'm 6'2" and around 245 lbs of twisted steel and sex appeal. I need all the help I can get to eliminate noise walking through the woods.
Also, given that I'm hunting in a lot of pines, facing the tree and being up against the trunk help with reducing the sky-lining profile. Ideally, with any tree, I try to find forked trunks to nestle in between, but doesn't always work out.
I still use my climber occasionally, but not nearly as much if I'm going into an area blind, particularly on public.