I use a firesteel most of the time. I think the reason people have issues lighting natural tinder with them is lack of technique. I see people flicking them with the striker as though trying to use flint and steel.
I use the back of my knife blade on the ferro rod, as though trying to carve a sliver off it. This hard, controlled movement produces great sparks. Flicking it quickly will just give you a pretty display of sparks.
Once you get the technique, you can even light feather sticks with them.
Someone mentioned the firebow as an alternative... I've lit quite a few fires with this method, but have found that if there is even a hint of humidity, the ember doesn't ignite. Certainly wouldn't want to rely on it as my primary method.