My EDC for the past year plus has been a Surefire/Vtac L4U. For anyone who isn't up on those it is an E2D but with a Scout light head so single output. I don't want the multiple outputs, kind of the thought that under stress I don't want all my lumens and end up going to low output, one of the reasons I don't like the TLR1Ss on my guns. I have broken one clip and not being able to just order extra clips from Surefire or others sucks, but SF will send you replacements for free, but plan on waiting a couple weeks, and you may not get the right sized clips. I'm also not running a weapon light, YET, on my EDC Glock 19. So that is also driving opinion/need/want for single output carry light. Also has the added bonus I can swap heads with my M600s if I have the desire to, so when upgrade time comes....
Also have a Surefire Titan on my keychain, use this as the justification that I don't need low output on my pocket light. Will give props to it for actually having survived, for the most part, being on my keychain for two years and still working which is better than the previous 2 or 3 other lights that I have had.
On the of lights that I EDC'd for a time and died quick and painful deaths, several Streamlight Stylus lights, a Nano, and several no name brand lights that were free, probably for a reason. Also used to try to EDC a G2X, great light, sucks to carry in a pocket, at least for me. but they take kicking, literally, and keep on ticking.