They are plenty goodwith them all but they default to their nose. How many times have you bumped or spooked a deer only to have them leap a few yards sniff, blow, look and listen. They know something spooked them but they aren't sure where or what it was, so they default to scent while running the other senses at the same time. My experience isif they smell you and spook they are gone. Though I have had deer move downwind of me and for whatever reason don't spook.

They are all very good and rely on them as a combination to ensure safety but I personally believe the nose is often the deal breaker.