I voted something else. There's a Bic in my pocket at all times(I don't smoke). The Bic will cover 99% of my firestarting needs and the ferro rod on my keys is a nice backup. The ferro rod is covered with heat shrink tubing to protect the rod, and so that the keys don't strike any sparks from it while it's in my pocket.
The equipment on my trucks includes lots of other options too. Water/windproof lifeboat matches, waterproofed strike-anywhere matches, steel wool, candles, MRE's, water, TP, medical stuff(Note that this is not just first aid, a first aid kit is meant to stabilize a person long enough for an ambulance to get there, that takes longer when you're 25 miles from the nearest paved road.), soap, etc etc etc. The distance I'm going from civilization and if I'm alone is what determines how much gear I carry on my person. If I wander away from my truck to take a leak, trip, and slide down a hill, I could wind up 500 feet away from most of my survival gear with a steep muddy hill and a broken leg to impede my progress back. What I have in the truck may not matter, what's on my person could be all I've got.
I've found that trying to aim the shower of sparks from a ferro rod or flint steel is a pretty chancy affair. I prefer to pinch the tinder between the rod and the striker so that there's pretty much nowhere for the sparks to go but into the tinder. It takes some practice to hold the striker, tinder, and ferro rod right, but makes a fire much more reliably. Less picky about how dry the tinder is, too.
Whatever equipment you carry, make sure the first time you use it is NOT when you're out of cellphone coverage, injured, in pain, and in dangerous cold.
:buddies: