I used to smoke a pipe a bit and that is why I bought the pipe version. It is also nice as the flame comes out the hole in the chimney so it works nicely on a tinder nest and pile.
I also have a few extra flints under the felt pad.
I have never really noticed any differences in fuel. I use Ronsonol because I can get it at the grocery easily.
Overall a disposable butane is probably a much better choice for carry but this old Zippo just feels right.