I hear you on the eyesight... I really think variables are the way to go if you have trained to where you instinctively acquire a good cheek weld.
The Leupold 1.5-5x gives you a lot of options and has an illuminated reticle. The downside is the illumination is not really bright enough for daytime use and is geared more towards lowlight. If you are like me and like that bright red contrast point that automatically dims to black, then this reticle may prove to fine or too dim. Last I looked this was in the $700 range.
A Leupold shotgun scope is actually pretty effective on ARs. It has 1-4x variable non-illuminated reticle with thick posts on the outside and crosshairs in the center. You can get it as cheap as $199; but no illumination so it doesn't work in low light without a flashlight.
In the $1200-1500 range, you have the two new contenders for the SOPMOD Day-Only Sight. The
TA31DOC and the
Elcan Specter DR. The TA31DOC features the TA01NSN crosshair reticle; but in red and backed with fiber optic daytime illumination. In addition, it has a Dr. Optic mounted above the scope objective so that you have a red dot with all of its advantages. The Dr. Optic also has a light sensor and adjusts brightness automatically much like the current BAC ACOGs; but is battery dependent. The ACOG is tough like any ACOG; but the Dr. Optic is a bit more exposed to getting smacked around.
The Elcan DR has a lever that quickly flips the scope from 1x to 4x. It uses battery power to illuminate the center with either a dot (1x) or an illuminated TA01NSN crosshair (4x). Good glass and built in ARMS throwlever mount; but uses the Elcan external adjustment system which has had trouble holding zero in the past during hard use. However, this version of that system represents the fifth generation of it and this system is in use with the military, so while it isn't as bombproof as an ACOG, it isn't fragile either.
At the top of the heap you have the Nightforce 1-4x (if you can find one) and the Schmidt & Bender Short Dot 1-4x. Both are top quality glass with daylight illuminated reticles and multiple cams available. The Nightforce is slightly cheaper at $1800 but virtually impossible to find. The Short Dot runs $2000 but can actually be found. The downside is these are both heavier and more expensive than the Day-Only Sight contenders.
I've gotten hands on with the Leupold 1.5-5x, Leupold 1-4x, Nightforce 1-4x and a home brew version of the TA31DOC (Docter Optic mounted on TA01NSN). I've played with numerous Schmidt & Benders but not the Short Dot. Haven't seen the Elcan DR.
I've been trying to find an optic myself to replace my TA11 on my project gun*. It gives me great service out to long ranges; but it lacks speed up close and I can't get the precision the rifle is capable of at longer distances. The ones I've listed above are on my short list, though I probably wouldn't look at the Leupold 1-4x unless budget was the primary consideration. Right now, I will probably keep the TA11 since it does most of what I need it to do and I can't get a substantial improvement on it within my budget.
*The project is to design one rifle that can do box drills while moving in 4.5 sec or less at 15yds and then go out to first round A-zone hits at 500yds under time constraints with no additional or different equipment.