I used a friend's zippo to light my cigar when were were having a get together at a local park. Man did it taste awful! Could taste the lighter fluid right through the cigar. Me, I'm old school. I still use a wooden match, no need for a lighter here. If I were to buy one it would definitely be a butane torch lighter.
This may sound wierd, but for me smoking a cigar is kind of a ritual from start to finish. Something about using a match and the process of striking it, impatiently waiting a second or two for the sulphur to burn off, rolling the cigar to get it lit evenly, and blowing the match out w/my first good puff of smoke gets me primed and in the mood to really settle down and enjoy my cigar. Wooden matches only tho, never paper (book) matches.