I'm pretty happy with my AAA Atom A0. I prefer the floody type of beam. Mine is a titanium with white (not red) output thought.
I can say that the flashlight is TINY. Like the size of a AA battery. It's a toss-up between the A0 and my P1. I like the higher max output of the P1, and the lower lowest-setting of the A0. I wish they had a 3-mode hybrid of the two, with the lowest mode being crazy-low like the A0, then the next mode being about 10, then the high mode being 70-100.
I also have to say I'm not thrilled with the magnet. I haven't found it coming in useful for much of anything, and it just grabs onto random metal things when i don't want it to.