I use both but utilize ground blinds more frequently. I make them out of natural material to blend into the surrounding and make them big and comfy, tree stands just aren't as comfy as a good blind. My brother and I both sat in one of my blinds this year as he shot his buck, lots of room to spare. Some areas i hunt I'd never hunt from the ground and vice versa. On a personal note, the last 4 bucks I've shot came from the ground, from 15 yards to 200 yards, smallest grossed 153, you can definately kill big bucks from the ground as well as a tree.