Pros and Cons to both. It really does depend on the terrain and what kind of woods you're hunting.

Thick East Texas and South Texas, get off the ground you can cover more shooting lanes.

Central and West Texas, where its a little more open between thickets, and the Tree tops of the thickets are too thick to shoot through, I think a well made natural cover ground blind works wonders.

But you gotta do you're homework either way!