Aaron Rodgers -- The NFL Draft's a 'Train Wreck'

Seems Aaron Rodgers is still bitter about the NFL Draft ... calling it a "train wreck of 'expert' analysis and awkward hugs."

So, why would the Super Bowl champion QB be so salty on the league's biggest offseason moment?

It probably stems from the 2005 draft ... when some experts projected Rodgers to be the #1 overall pick ... but instead, he tumbled all the way down to #24.

Cameras focused on Aaron during the slide ... and you can tell he was pissed.