I hunt from both and always feel safer in my climber do the former stated fact that you can be tied to the tree before the climb. However not all trees are climber friendly and I use sticks as well. Its much more of a hassle being strapped to tree via a climbing belt when ascending using sticks, tree limbs or whatever. I find myself just not fastening in until I'm about ready to leave the sticks to step onto the stand.
Dan