who said public land? are you hunting public land?
my short answer would be NEITHER! get a ladderstand...it's all I use anymore, period. Sold all my hang-ons, still have a climber just in case and because I spent $250 on it I think, I think I have it still just as a back up if I ever need it.
I'd rather put up a ladder over a hang-on or climber anytime too!