Is there a favorite red dot optic at the moment? Mine has seen some serious use, and actually served a tour in Afghanistan, so I would love to hear about the newest, greatest, lightest, etc.
Depends on what you are looking for, imo. I have a few for different purposes.
I really like Elcan Specter DR's and Acogs. The Specter is a bit heavy, but being able to adjust zoom from 1-4 power with a leaver is nice. Acog's are a pretty known quantity in terms of clarity and reliability and are cheaper than the Elcan. They are also pretty durable and hold zero well. I will run these on my standard length uppers for "field" use. The zoom really helps at distance.
For urban/short barrels/or un zoomed The way to go is either the EOtech or the 2moa aimpoint micro. The 4 moa is too much dot. I've used them both extensively, and I like them both for different reasons, but over all like the eotech better. It has a larger window for better field of view and picks up on target faster. I generally avoid the multidot ones, just stick with the standard circle/dot. That being said, if I were to find a smoking deal on an aimpoint micro, I'd jump on it. very reliable sight that holds its zero very well. for size, weight, reliability the aimpoint is the winner. Eotech wins on speed, just not reliability.