I approcah my optics from a requirements stand point.
Requirements are in this order
1) Speed of acquisition 2) Cost 3) robustness 4) weight 5) battery life
Items 2,3, 4, 5 are also whats known in acquisition as RAM-D.
Reliability, availability, Maintainability, Durability.
With cost falling under "availability" (tho not everyone in industry agree with this and likes to break cost out seperate)
Or put another way:
A professional grade yet affordable Sight that improves speed and normal combat ranges (0-200m are the most normal combat ranges, some argue thats its really 0-100m)
So I have no requirement for magnification.. its a nice to have but may increase weight, reduce speed.
I have narrowed it down to 2 systems
The EOtech 512 and the Aimpoint PRO
For Speed of aquisition , light transmission fo the glass and field of view the EOtech is superior.
I know th Aimpoint is more robust (tho my Eotech is robust enough for my purposes) and the battery life is not so meaningful to me in "normal" use as just "making it" thru a very short number of hours of firefights in an early stage SHTF will be decisive.
For this reason my primary rifles all carry an EOTech
However my cache rifles carry Aimpoint PRO as for that role the extreme durability and battery life now assumes a much greater importance.