It's all in your personal definition of "advantage".
L2T has: slightly more output/dual output levels/higher cost/no "real" warranty
Streamlight Jr. has: slightly longer runtime/lower cost/a "real" warranty
I'd say if you don't need 2 levels of light, the Streamlight might be the better deal....especially, if you have any concerns about which company (Fenix or Streamlight) is most likely to be in business when/if you have any issues with the product. The Fenix is basically a throwaway commodity. (Free labor--but you buy the parts when it breaks???....talk about a useless warranty).
Now I know someone will pipe up and say that the companies that are selling the Fenix products now back them with their own warranty (which in and of itself speaks for how poor the warranty is). My question is, how are THEY going to honor the warranty if the upstart company goes belly up in 6 months? Where are they going to get the parts, etc?
Understand, I'm not knocking the actual product per se, but I do have reservations about buying something that the manufacturer doesn't have enough faith in to offer a bonafide warranty...especially when they've been in business such a short time and operate offshore.