I know that people that are usually late for things are also not prepared. One of the big issues for a good leader is being fair, but I think organization has tied in third place with fairness, which in my opinion means treating everyone equally, and fair. If you're not fair, then you probably are a grumpy person as well. Another thing all persons, good leaders, or not, should have is organizational skills. Before I mentioned that people who are not punctual are usually not prepared, and so they are usually very disorganized.
Uniqueness is a great quality to have.
People are leaders because they use their own minds. They aren't trying to be another person. They just want to be themselves. Those are five things a leader should absolutely have. Now, I will tell you the person I most admire out of the whole world.