20 feet is my minimum unless the canopy won't allow it. If I'm less than 20 feet I feel like I stick out like a sore thumb.

On average I would say about 15 to 22 feet, with about 18-20 being the most common. Some times you can't go higher, and there have been a few times I had to use all of my 30' bow rope just to get above the deer's eye level if I had to be at the bottom of a ridge, but was watching the top of the ridge.
I always try hard to get some background(leaves, branches, limbs) behind and/or above me when I'm in a tree. Got busted considerably less when I started doing that.

peashooter

If I go any higher than 15 - 18 feet I could never take a shot. I would be to busy holding on the tree[8D]

15'-22' is my comfort range. I really don't care for heights, but I force myself to get used to it. Once I'm all nestled into my climber for a few minutes, I'm OK. The part I hate is getting settled in(hanging gear, pulling up gun or bow,etc).

I am kinda like you duckbill, i am a bundle of nerves until i get the stand strapped tight, get all my gear arranged and sit down for 5 minutes to catch my breath, once i am settled i am ok. I can stand, turn and maneuver without any real difficulty

15 to 20 feet

20 feet give 'er take when the leaves are on... 25+ depending on the terrain when the leaves are on the floor.

15-20 feet

20- 25 ft

I average around 20'. I let the situation dictate, but usually it's right around 20'...sometimes as low as 15'....sometimes as high as 25'+