I have been watching this thread. There are a lot of great suggestions here!
I almost never select a straight tree for a stand. I don't own a climber. I am lucky to have my own 28 acre patch of woods and I have about 6 or 7 stands set up. I look for forked or multi-trunk trees and use those whenever I can. They obscure your outline and if a deer can make you out from 50 or 75 yards away you won't have to worry about making a 15 or 20 yard shot. So I rally focus on a set-up that keeps my silhouette obscured.
But a mediocre tree in a great spot is better than a great tree in a mediocre spot. I am dealing with that this weekend. There is a great spot on my place but the great trees are all 50+ yards away. Last weekend I lugged a steel ladder-stand to a mediocre tree that has a young white pine growing behind it. (What a pain in the butt those steel ladder-stands are!) This weekend I plan to cut a couple of cull white pines and lop off the top 15 feet of each, drag the tops to the the ladder-stand site and wire them upright next to the ladder stand to "enhance" the cover around the stand. Artificial Christmas garland is a great tool for this but I didn't buy enough after Christmas last year and I am out.
Most of my stands are hang-on stands that I make myself out of structural aluminum shapes. At 71 I am getting less fond of screw-in steps and I make ladders out of PT 2x4s with 1x6 PT rungs. They are MUCH lighter than a steel ladder stand so its much easier to move a stand if the sign dictates the need. I have to make 2 more for this upcoming season. I just lean the ladder up against the tree, climb up and lash the top of the ladder in place, install safety line, hang my stand, and I am ready to hunt.
With every stand I have an access plan - a path I take for the last 20 - 30 yards to get to the stand that is made quiet.
All this is easy when you have limited-access land. For public land it is MUCH harder!
Stick a big one!
JMC