Both are very good.
My suggestion is go to a good gun shop where you can take them out of the box and look through them. Maybe even throw one on a rifle to get the feel for it. If they dont let you, Its not a good shop.
I like the Aimpoints for their crisp, clear dot. But the EoTech is one in its own. EoTech is tough as nails. You can beat em all day and they will hold true. Ive knocked zero off an Aimpoint before by bumping it.
Just my .02
I carry a 1 inch guardrail nut on a loop of 550 cord. Its not whiz-bang tactical, but one shot to the grape, and its coloring books for Christmas.
Advocate For Armed America Because Your Attorney Can Get You Out Of Jail, Not Out Of A Grave.