Taking from the concept of Lord of the Rings I believe that there are Nine Senses given to Men(or Women) to Lead the world and One Sense to Lead them all. Here they are:
1. Sense of Vision: To see beyond what you can see
2. Sense of Hearing: To listen to everything whats happening around you verbally and non-verbally
3. Sense of Taste: To have that aesthetic/exquisite or plain simple "different" sense of taste for things/people/surroundings etc
4. Sense of Touch: To have that healing touch to connect straight to the heart of the people/situations
5. Sense of Smell: To smell opportunities and threats coming your way
6. The Sixth Sense: Instincts, gut feel to take decisions in grey areas when theres not enough data and the future is unknown
7. Presence of Mind: The only one standing out not only because it has a different spelling but also its a lucky one that only a few have(thats why the no. 7 :-)). According to the dictionary its the ability to think and act calmly and efficiently, specially in an emergency.
8. Sense of Humor: According to the dictionary a disposition to find(or make) causes of amusement in people, surroundings and your own self. It is also the trait of appreciating the humor in everything in life/nature.
9 Nonsense: or in other words - Chaos. you have to start appreciating and channelising the chaos inside you and outside to "give birth to a dancing star in you"
Now coming to the sense that leads them all: Common Sense. Its the sense to take a Sound judgment not based on specialized knowledge. Hence a mix of all the above senses are required along with the experience to give rise to the said common sense.
All these senses have their grey areas that overlap/intersect with one another and if used in a proper balanced way they can make or break a man. He can be the worst of worst to the best of best Leader world has ever seen.