Howdy Screwball,
Well, I only found CPF about a year ago, so I'm pretty new too. Hey, an upgraded 2xAA LED mini-mag is an excellent start. Also, a lot of the folks here at CPF have reasons for wanting to use Xenon bulbs, such as better color rendition, very bright output, etc..... so it's nice to have choices.
One of the ways we try to determine which lights to pick is to list the kinds of uses we will have for the light, and what attributes we feel it should have.
For instance, if somebody wanted a general purpose, around the house, dog walking kind of light, we might suggest something different than if they wanted something for rock climbing, or scuba diving, or reading maps in a car. Many folks want to be able to use rechargeable batteries, so that must be considered. Some want a light capable of spotting an owl sitting in a tree at 200 feet, so we would suggest something completely different.
Ok, don't be in a hurry, just keep reading and pretty soon you will begin to pick up the lingo here and it will become easier to sort through all the information to find what you actually need to help you find the right light.