I like flashlights that use a single AA size battery because I have a lot of AA rechargeable around the house and a single AA typically holds the right amount of power for my needs. Obviously I also like high quality (efficient and bright) LEDs.
I would get off the fence for either:
(1) Light weight headlampwith a comfortable strap (the Tikka XP2 would be fine), good regulation (EOS is so/so… Fenix quality or better), good flood and throw (careful designed lens or flip down difuser), a useful battery indicator (at least quarters, be nice if it showed % of battery left and estimated run time like my laptop… yeah I don't know how to put that in a small, light package, but it would be nice), and either continuous brightness adjust or a 1 (most in camp task), 10 (trail hiking), 40 (off trail hiking), and 100 (wayfinding) lumens settings.
(2) a Zebralight that had better throw (not the ultra floody beam pattern)… love the size and form factor. Regulation is good enough. I would give up a battery indicator for the form factor.
Meanwhile, I will continue to use a iTP A3 EOS Upgrade flashlight
–mark