I'm a die hard tree stand guy for hunting my local area. To me, its absolutely easier than getting a shot at a smart, schooled buck from the ground. Thats why I'm in a tree!
Now, does that make it easy? HA! Far from it.
Ya gotta know the land, the animals, the food sources(no farms here..natural browse), the time of year, the human pressure, when to hunt it as far as wind,cold,rutting activity,etc.
Most importantly (IMHO) is when to BAIL on a stand and move if nothings going on, no matter how good it looked pre season.
Now, sitting for hours in the cold can be boring, cold, uncomfortable, etc., but I can often use thermals to sit in an area that the wind is bad in but still be above a deers nose...not easy on the ground!
In reality, if I could get a shot at as many bucks from the ground as I have from a tree around here, I would ground hunt. Its more fun and not as cold. But to me in my experience around here....ground hunting for a mature buck is brutally hard. I took my biggest buck ever from the ground, but it was not my skill that got him. I was damn lucky. I know "I" made the shot, but I did not plan on outsmarting him before hunting. I knew nothing and he was dumped in my lap.
Love to ground hunt, but I'm good at tree hunting, I'll stick with it around here anyway.