UCO Storm Matches are almost scary in the way they burn and stay lit, even in dunked in water or snow after lighting. They come loose or in a waterproof canister. If I needed a fire fast, I'd use one of them with some hot-burning tinder.
BTW, I just saw a nifty firestarter kit from Zippo on Amazon that uses the same flint wheel as their lighters, along with some tinder chunks that can fit on a stick so you can poke them into your fire pile. Looks like it will work one-handed too.
