I suggest either matches, a Bic lighter, or a Clipper lighter.
I am currently only using matches as I find them more classic in style and easier to move the flame to specific areas. I've had very good luck with both Bic and Clipper lighters as well. The Clippers actually seem to be easier to use simply because they are push button and the flame is a little more pronounced. Neither seems to leak fuel so they last a long time, they are cheap, and consistently reliable.
I own a Zippo pipe lighter and have found it to be nothing but a hassle. Lots of people like them and have good luck with them, but not me. Sure, they are built to last and stand up to wind better than anything else, but mine evaporates fuel very quickly and I got tired of the excessive relights. It just doesn't seem to keep my pipe alight for very long and my method for lighting is no different for any of the other lighters that I've tried. My experience with the Zippo is disappointing given that it's the most expensive lighter that I own.