What is the most efficient way to make a fire?

In terms of longevity, if you have X ammount of wood, what's the best way to burn it to get the most out of it? If I had to guess it's the teepee method. I usually start with a lean to, to get it going, then lean on bigger sticks until it's good and going, and then finally, I create my teepee. How about you guys? http://ift.tt/2g9wglN