I've tested lithium against eneloop and there is maybe a very slight advantage to lithium, my gps runs over 24 hours on either for example with maybe a few minutes more on lithium depending how many months the eneloops have been sitting between charge. Same with my radios and such. Also the cost of eneloops and lithium is about the same. So far eneloops do much better in the cold than traditional so there isn't much lithium advantage there, maybe someday I'll put some side by side in the freezer and test but any cold that I could stand to be in they did fine.
I see little point in lithium now a days.