For my less smart-alecked answer, I hunt every thing from the ground. As my screen name suggests, I am a big fella (6' tall and 350lbs.+ right now) and I don't trust much of anything to hold my fat butt up. I have a hard time even finding chairs or stools that will handle the job, so I'm not about to try to put that seat 15-20 ft. up off of the ground!
I also really enjoy the fun that goes with still-hunting. So I generally walk very slowly through an area and if/when I find a place that looks like it's worth the effort, I make a make-shift natural blind and (if I have my fold-up stool with me) sit there for a while, or just make sure that I sit there the next time that I go through with my seat.
Although I haven't killed anything yet, I have had quite a few awesome encounters with all kinds of animals doing it this way. I just manage to find a way to screw it up EVERY TIME! Lol. And I have seriously scared the crap out of quite a few deer this way (either by making them think that I'm a Sasquatch comin' for 'em, or by slapping them harmlessly with the fletching of one of my arrows as it zips by). But, so far, they have all had good strong hearts (and legs) that did not fail them in their moments of fright, and they have all lived to tell the tale to their buddies.