I highly recommend the SF E2e. I EDCed it for months and was very happy with it overall. I would definitely advise you to get the clickie switch for it, and I would also suggest that the 6P, G2, G2Z, C2, M2, D2 are all too big to EDC in a pocket. That little bit of size difference really is significant.
However, that said, you should know that I no longer EDC the E2e, but instead EDC the A2. The A2 is longer and just a tiny bit larger in diameter at the bezel, but it is still EDCable in a front pocket, and the clip works better than the E2e if I want or need to clip it to my belt. Plus, the A2 is regulated so the incan output is always white and bright. 50 lumens may not sound like a lot, but those are 50 really nice, long throwing (relatively, anyway) lumens. Do a search on "A2" in this forum, and the LED and incan forums, and you will find a great deal of discussion.
Just a thought. Either light would be great. I don't own, nor have I used, an L4 or L2, but I suspect those lights would be great choices as well. It all depends on your preferences and ways in which you are likely to use your lights.
If you want more info on the E2e, I specifically posted a question thread on the E2e some months ago titled "E2e owners inside please" or something like that. Good info from experienced CPFers in there.