Apathy
From Activating Evolution
Apathy is the absence of emotion, which allows one to make decisions far easier. One with this "ability" could not be affected by abilities meant to induce emotions of any sort (no love-inducing powers, pain-inducing powers, fear-inducing powers, etc.). It would also be far easier to make decisions, face opponents that others wouldn't, resist temptation (even Psychic Persuasion), and do things normal people would be far too afraid or embarrassed to do. A person with this ability thinks purely with logic, and so they tend to be fairly intelligent as well.
Next: Apotheosis
