I do not like trees or a large tree in the middle of fairways or fronting greens. Most of us are not PGA caliber players. Attempting to work a ball off the tee around or over a large tree smack in the middle of the fairway can be frustrating. I can do it but I don't like a steady diet of this. Worse are the greens protected by a large tree that require an extremely high ball flight (and often long distance) in order to clear the tree and hit the green. Give me some options, like leaving 1/2 the green open.
Any feature the rest of you prefer not to see frequently?