I love my streamlight protac 2a i carry it every day at work and it gets heavy use. Anytime im away from the house it is in my pocket. Its not as popular for some reason as the more exotic lights but it has been a workhorse of a light
Streamlight IMO is just as good as Surefire. Quality of light as well as customer service. You can't go wrong with either.
Fenix comes in a close contender too.