I upgraded my maglite to LED, simply by buying a Fenix L0P-SE.
Same size, and about the same battery life, unless you turn it to bright or dim.
But, some 20 times brighter. I no longer look for a 'proper' torch if I'm going outside.
On bright - there is no comparison, it's a completely different animal.
I have come to the conclusion that there is little point in a AAA light that can't put out 20-30 lumens from a single cell, unless it's much, much cheaper than $35 (shipped, worldwide).
There are things that might make me pay a little more - integrated tritium, low power glow modes, adjustable focussing, but though my minimag-solitare has survived nearly a decade on my keyring, putting out a pretty anemic glow when it worked at all (oxidation around the bulb leads), I don't think I'll be going back to maglite.