Climber for me all the way.
I hunt public land that is heavy with very large pines and open woods. I gotta get high. There isn't a ladder or lock on that I know of that will get 30 feet up in a tree with out buying a bunch of sets of rapid rails or similar.
Another thing for me is security. I haven't found a ladder or lock on that I feel as safe in as I do in my Cougar Claw climber. I am 6'2" and go 275 and I can dance a jig in my Cougar Claw and feel perfectly safe.
I also don't have to worry about thieves with a climber.