As a tactical light, I feel Surefire has done everything right, and I do think right now that the 123A-based Surefires are unparalled for this. They've made all the right decisions and tradeoffs: placement and type of switch, beam intensity/pattern/smoothness, brightness versus runtime tradeoffs, size tradeoffs, option of using Rogers technique with some lights, lamp assembly options, etc.
As for a putz-around EDC light, Surefire's become a bit less compelling for the price. The E2e, and the E1/E2+KL1 bezel are both really nice options, but kind of expensive. Plus, for EDC, a clickie switch works out nicely, and I feel barrel-mounted switches work better than tailcap switches for EDC.
In addition, I'm not convinced Surefire's rechargeable line is as compelling as their 123A-based line. My rechargeable is a Tigerlight FBOP. If I hadn't gotten that, it would have been a Streamlight Ultrastinger. Surefire came in 3rd place for me, for rechargeables.
All that said, my EDCs are an E2, and an Arc LS w/ clickie switch. I can't imagine going to anything else, I just love these lights, and I'd give something up going to anything else, IMO. My dedicated tactical lights are a Surefire M2 and a Surefire M4. My rechargeable, which does double-duty as a utility and tactical light, is a Tigerlight FBOP.
Joe