Every player that has his first big year is thought to be set for bigger and better things, but it doesn't always happen that way. Perhaps you've had your head in the sand and never noticed.
As for talent, Dak clearly has at least as much arm talent. Jackson's unique talent is in his legs, but no QB in the NFL today can match that. Of course, that was the case with Michael Vick too …
As for winning, what exactly has Jackson won that Dak hasn't?
By the way, notice it isn't just me that isn't ready to call Jackson the 2nd best QB in the NFL. You're pretty much alone on that. Come back in a year, and if he has similar results you may have a point. Right now it is premature to rank him ahead of Rodgers, Wilson and a few others.