Macgregor, to me it sounds like the best choices would be the L1 and the E2L. I believe with the new generation of Cree LEDs that surefire now uses ican lights are dead in pocket lights.
The 6PL is another light to consider, although noticeably larger then either of the former mentioned lights. The diameter is going to make a difference in pocket carry, and it also goes not have a clip. My big complaint is that the 6P is not type 3 hard anodized, meaning it will not hold up like the other two lights over time.
Unsub, Ive never seen a fenix more durable then a surefire, and Ive seen dozens of each. It should also be mentioned the fenix over states their run times much more then surefire.
check out
www.candlepowerforums.com for more then you ever wanted to know about lights.