It really comes down to personal preference, but I prefer the Aimpoint because:
The battery life of the Aimpoint eclipses any of the Eotechs by a WIDE margin
The Aimpoints control knob is much more functional to me, especially under stress or while wearing gloves
As M4 mentioned, being able to use the Aimpoint with the front lense cover closed gives some flexibility when transitioning quickly from indoor to bright sunlight or with flashlights without having to make adjustments
I do NOT like the Eotechs auto shut-off function
For ME the Eotechs dot in a circle reticle is just too busy

