Not to sound pedantic, but whenever I see someone use the word best in regards to a flashlight, I have to ask them to define makes determines best for them. That would be a big help to the rest of us in suggesting possibilities to you.
Give that statement, there are a lot of very good AAA lights besides the Maratac. Streamlight has the Microstream and Stylus Pro, Lumintop has the IYP365 and the various incarnations of the Tool. TerraLux makes the Lightstar 80, and Nitecore has several models in their T-series of lights. Those are just the ones I know off the top of my head. I am sure Fenix and probably Olight have some too. As you can see, there are a lot of possibilities within a large range of prices.
Most of the vendors websites will give you the option of selection lights by battery size as well.