Battle of the Electrosights
Blue Line, billed as "Canada's Law Enforcement Magazine", has an interesting article in their December 2010 issue on Aimpoint and EOTech electronic weapon sights (EWS). In it, they pit 3 sights against each other in torture tests:
The Aimpoint Micro T-1
The Aimpoint CompM4S
The EOTech 552 Holosight
The end result is: They all rock. But for a better explanation, and to see the torture tests they put them through to prove it, read the article posted here.