Sorry, Cowboys and Eagles ... those Super Bowl dreams you have AIN'T HAPPENING this year -- so says Joe Theismann, who tells TMZ Sports the Redskins are taking the NFC East!
"I just like the Redskins," the legendary QB says ... "Nobody's giving us any credit. Nobody's giving us any props whatsoever."
Of course, Joe is biased ... the guy spent the entirety of his great 12-year NFL career playing in D.C. -- but he says there's a method to his wild prediction.
Theismann tells us he thinks every team in the division has holes .