Bic, although i always end up coming come without it. Back in the around the campfire days if we lost the lighter we would use a smoldering red hot stick, not so good.
I enjoy my hemp wick a lot but it's not that convienient as it seems to go out from the slightest breeze. So lately I've just been sticking to a cornered bic.
Although hemp wick would be the most desirable, I almost always find myself using a Bic. So i gave "cigarette lighter" the vote on this one.
The propane torch is used to light the Atom Smasher which then lights your flower or concentrate. Basically its like using a glass rod but more convenient.