Kakashi has great leadership qualities and experience to make wise and informed decisions. Would make a great Hokage if he would gather the motivation.
Naruto has great leadership qualities, but overall lacks experience and may be a bit too rash with decisions to be Hokage. Too young right now I think.
Sasuke lacks a connection with people and empathy to make for a great leader. Other than that I would trust him to make informed decisions, but his ethics and caring for Leaf citizens are in question. It would take a great change in character for him to be Hokage.
Naruto is the most suited to be hokage