Your expectations are correct. I have all the listed lights except the E2D. I read somewhere that it out-throws the E2e a bit, but no explanation as to how/why was offered.
The L4 is the most recently-acquired of those lights. I bought it and a McGizmo two-speed tailcap, thinking that would be the ultimate general purpose combination. Like pjandyho, I found the L4 sorely lacking for my particular outdoor modus operandi. It is a great light, and I will keep it; but it is no longer my EDC.
Several discussions with McGizmo have made me realize that LED technology is not quite "there" yet; while he can make me an LED light that will out-throw an E-series incan, he cannot do it in a package of equally small size. And that is what I need; something as small, yet powerful, as possible.
FWIW, I find the throw of the E2e adequate for my purposes outdoors, but it is indeed noticeably less than the P60 output from a G2. Not a whole lot, but noticeable. I operate in mainly urban areas where there is usually some ambient light.