I know all the good places to tresspass. :D Being confident that I can make the shot. Everything else is really just me sitting in a tree, freezing my ass off.
I think it would be my ability to learn perpetually... and to realize that I will never know everything about hunting. I am also lucky enough to be able to hunt with great mentors and am able to "fast track" my success, somewhat, by learning from their mistakes and avoid making the same mistakes they did... as well as trying not to duplicate the mistakes I already made on my own.
There are two thing that makes me a successful and they are hard work and preparation. As I am sure you all know hard work and preparation when they meet opportunity equals a buck in the back of my truck.