Yep, as supes suggested, more information about your intended use would be helpful, as well as what kind of lights you already have.
If you are a little broke, you could consider the NovaTac 85P. I think the P model is by far the most popular because you can program it anyway you like, and for $110 you are getting all the goodies of the NovaTac EDC P series, while only giving up the very top level or brightness, which is of course fun to have, but in reality I've found I end using 42 lumens most of the time anyway, ha. But, the fun of being able to program the 4 individual light levels to any of 21 or 22 brightnesses (is that a word?), and all the neat options (timer, strobe, force on, etc), is just to much fun.
Of course you can't go wrong with a Surefire purchase, but the L1 only uses primaries, and does have a rather tight beam, not exactly what I would be looking for in an EDC, but, if you are outdoors a lot, and want an exceptionally good pocket light with 2 levels that will allow you to spot something clearly at a distance while still giving excellent run time, then that would be your light.
I like the G2L, but wonder if you have looked at the Dereelight or the Wolf-Eyes models? They both take rechargeable batteries as well as primaries, and offer a choice of multiple level drop-in modules, very useful features!
Ok, that's my 2 cents. Happy hunting.