It's not an either/or question for me. I use both methods. I'll sit in a blind and bushwack a deer. If they don't come in, I'll go after them. One of the benefits of a ground blind is the ability to do a stalk if the deer pick a different trail than the one you set up on. If you're in a treestand you're... well, you're up a tree. No way to get down without getting busted.

Perching in a tree is fer the birds.