Out of curiosity what makes you think that ? Am sincerely interested what you have seen in the film that made you go against the majority opinion.
Sure. As you know it's an amateur's opinion. I started looking into it a while ago (I think I posted something similar last season about this) and I do think it's accurate to say that Brissett is either the equivalent or better than Prescott. Although his first preseason performance damages my theory a bit. hahaha
Btw: I'm not suggesting a "cliff" rather a drop off from last season. IOW, he'll fall to the middle of the pack sort of thing.
I don't think Prescott reads defenses at all. And because of that the Cowboy's have instilled a bunch of muscle or speed plays into their offense.
Misdirection, sweeps, bootlegs and power runs etc...
I also think they incorporate false first reads into their plays. I would say more than 50% of Prescott's throws included him looking the opposite direction and after a second or so he'll look to his target. The intent, of course, is to move the safety or zone coverage one way to open up something on the other side.
I think defenses will respond to that and may already have with a zone type spy.
The problem is, or at least was last season, the Cowboys had a top five OL. Prescott had a a lot of time in the pocket. (I think he ranked top 5 or so) He needs that time for plays to develop because, again, I don't think he can read defenses post snap. However, like Rodgers, he can throw on the run and make plays.
Anyways I think if defenses can force him into his second read he'll have problems. Of the plays I saw that happen he threw off target, took a sack or ran more times than not.
Brissett has a similar skillset but has shown signs of reading defenses and finding his mismatch post snap.
On a side note: the cowboys have lost two of their starting OL guys from last season. We'll see how that plays into things.
Anyways just my thoughts.