BIC all the way. I have and carry a couple of the butane lighters. I trust the BICs to work and I like that you can see the amount of fuel remaining. I also like to use them to read wind so I have way too many with my. I figure they weigh nothing and I don't want to ever have to start a fire with a spark if I don't have to.
If it's an emergency, using a spark is the LAST thing you want to do. You want an inferno and you want it NOW.
