I'm upgrading the in-laws and wife on flashlights. Not to a UL level, but taking them from the old incandescent lights to current LED options. That means taking the in-laws from a 3-D-cell Maglite to a 4-AA Dorcy LED flashlight of lighter weight, greater life and greater lumens. Win, win, and win.
My wife likes a 3-D-cell in case the people by the side of the road in apparent need of medical care cause a fuss. Then the billy-club style and weight is nice to have. But with LEDs and lithium batteries, it is lighter, can be swung faster and (importantly) works well to -40F.