Miller's an easy choice- too much potential to ignore.... I think I'd take Dyson as the 2nd guy. He is 2 years younger than the other 2, and has proven to be the most consistent, competent regular player of the 3 of them...
If I have to pick just two, I would be torn between Dyson and Miller, depending on the injury situations long-term, but keep Poteat without a doubt. The David Barrett experiment should be over.
I'd go Dyson and Miller. Miller's upside and impact on special teams is too great to ignore. Dyson had a rough year, but at his best (see 06) I think he's much better than Poteat and Barrett.
based off of performance...barrett and poteat have proven the most dyson and miller offer the most value moving forward considering we should add a corner to start opposite revis in free agency or the draft...i would keep miller and poteat you keep potential/special teams and a solid veteran presence who can be called upon it would be ideal to add a vet and a rookie to the cb position, but i think that can be said about nearly every position on the jets