Jimmie that paint job is the shiz! What is that mag well thing called?
OP: I run some of both also. On my oldest kid's AR I have one of the new Nikon M-223 2x8 (BDC). On my middle son's AR I have the Leupold AR 3x9 on a Larue mount (mildot). Both are excellent choices.
On my social purpose AR I run an Eotech. I own a magnifier but I don't like the bulk and weight of it. By itself I could make fast easy hits to 100 yards, and more careful hits to 2-300 with no problem.
There is a significant difference between red dot and holographic. With a red dot it is possible to hold the rifle such that you can hold the dot still and pivot the rifle - which means that the point of impact is changing.
With a holographic sight the actual image is well down range (nice for us 40+ guys). Regardless of cheek weld etc, if the dot is on target you will hit it. Another cool feature you can see at some gun shops is an Eotech with a busted glass. The image still shows up, possibly off center in the window. It's still on target
I agree with another poster that I would own an Aimpoint in preference to the Eotech if the dot size was smaller. My experience with a compact ACOG was that the dot covers small targets at any distance. With the Eotech they say the center is 1 MOA but I've been told that is at maximum brightness. At a more subdued setting it is more like 1/3 MOA