The black diamond storm has been pretty tried and true for me. Being able to lock the button is great, then having different brightness settings and a red light is great too.
+1 for the storm. Great battery life and dependable. Light and lock out the power button. No need to look any furtherI've got a Black Diamond Storm as well and it's great. Red light, green light, up to 250 lumens and solid waterproofing. doesnt break the bank either.