The EOTechs are in a different league.
Between the TRS-25 and the Vortex, even thought the TRS-25 is very highly rated:
http://www.opticsplanet.com/reviews/reviews-bushnell-1x25-trophy-series-riflescope-trs-25-red-dot-731303.html
and is available with an AR-height riser:
http://www.opticsplanet.com/bushnell-ar-optics-1x25mm-trs-25-hirise-3-moa-red-dot-sight.html
I would go with the Vortex StrikeFire II:
http://www.opticsplanet.com/vortex-vortex-strikefire-ii-red-dot-4-moa.html
because of Vortex's warranty:
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Our VIP warranty is about you, not us. It's about taking care of you after the sale.
VIP stands for a Very Important Promise to you, our customer. We will repair or replace your Vortex product in the event it becomes damaged or defective—at no charge to you. If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition.
You see, it doesn't matter how it happened, whose fault it was, or where you purchased it. You can count on the VIP Warranty for all Vortex Optics riflescopes, prism scopes, red dots, rangefinders, binoculars, spotting scopes, tripods, and monoculars.
Unlimited Lifetime Warranty
Fully transferable
No warranty card to fill out
No receipt needed to hang on to
If you ever have a problem, no matter the cause, we promise to take care of you."
I have two EOTechs, a 510 and an EXPS2-2. The EOTechs have a 1 MOA center dot - it will subtend, or obscure less of what you are aiming at than a larger dot. The EOTech is a holographic sight - the reticle appears to hang out in front of you... some people have issues withe the reticle seeming pixelated, but I love mine.
Mark H.