I've killed good bucks off public land and private land.
For me, it is more rewarding to take a good deer on land that I own because of the work I put into it. It's funny when I hear people say you have to work harder to kill a trophy on public land. I guess that depends on what they consider work.
When I hunt public land, I'll look a satelite image of the area to get a general idea where I want to go. I may scout it once or twice prior to season. Then, I grab my climber, look for sign in the general area I chose to hunt and hunt. I'll fine tune my setup with each hunt and hopefully get a crack at a good one. I guess I would consider "work" on public land as walking in a mile and a half and having to drag your deer out since you usually can't take motorized vehicles on public land.
I consider the things I do on my private land to be harder work. Planting food plots in the spring and fall. Mowing some of them a couple times in the summer. Fertilizing them. Overseeding some of them. I manage cover, mineral stations and cameras. That's year round work. Then taking a nice deer off your property, that's a good feeling and more rewarding.
.....in my opinion, of course.