Aimpoint. The battery life is phenomenal, durability is excellent, reliability is excellent.
You can literally turn on and leave on current generation Aimpoints for anywhere from 1 to 5 years depending on the model (10,000 to 50,000 hour battery life). That's an important assest for an HD weapon. You can't do the same with an Eotech...
And they fit within your budget, too.
I'd get an Aimpoint C3 and a LaRue mount.