Three years ago my wife bought me a Summit Goliath stand for christmas all I can say is it's rated for 350 lb. and so far its been quite as a church mouse and rock solid when put on a good tree. Plus I can carry it all day if need be it weighs 21 lb. Only draw back is it's too much like my Lazyboy.

I'M sure there are others that are good but I guess i'm partial to Summit,also they provide you with a full body harness. I would highly recommend using one at all times to anyone in any treestand because it isn't worth the risk going without one.