The best of meprolight - Meprolight MEPRO Mor Pro 2.2 MOA M&P Red Dot Sight

As you might expect, this sight is not the best at any one thing, but is a very compelling package with everything combined. Trijicons may have a better light collection and optics, Eotech may have better reticles, Holosun / Sig may have clever instant-on activation and ambient light sensors, but none offer a package this well put together - and running on AA batteries. I only wish they offered a triangle reticle like M21, but hey!