All perfect lights but now i only have tk21 and its about to be replaced by EAGLETAC G25C2. I wish i could have them all at once. But my money does not allow it.
My EDC is a Fenix P2D, and I also have an LD20 R5, a PD30 Q5, an MC10, and a TK35. I also have the headband fenix made for their lights, which comes in pretty handy during power outrages.
E15. It's just the perfect size for jeans pocket carry and the knurling means it's usable with one hand. I have an E01 too, of course, but hate the tint and low output so no longer carry it.