Petzl.
I have a few headlamps from them.
This is my favorite.
http://m.petzl.com/en/Sport/ACTIVE-h...T#.Vmo8gKSDTqA
I bought it for when I'm in heavily treed areas. Now I use it everywhere, awesome brightness, batteries last a while.
One of their cheaper models is always in my pack as backup.
Different people like a different lumen output for the same task.
I like things to be really bright/ on high. Where you may find the low setting to be acceptable.