Brett Favre Picks Patrick Mahomes Over Drew Brees For MVP

Brett Favre -- a three-time NFL MVP -- has weighed in ... and Drew Brees is killin' it ... but he's not the league's current most valuable player.

"I would say right now, I'd probably have to give it to Mahomes," Brett tells TMZ Sports.

It's not exactly a nuclear take from the Packers legend -- most have Brees and Patrick Mahomes as the top 2 candidates for the award -- but Favre says the younger QB gets his nod.

"What Mahomes has done in his first year is incredible."

You can tell it kinda pains Brett to say it -- Brees IS, after all, one of the last old dudes standing in a young man's game -- but Favre still showed Drew some major love anyway.

In fact ... Brett also shouted another old QB who's killin' it this season -- saying Philip Rivers deserves some praise for his huge season too!

As for Mahomes ... Brett didn't go all Dick Vermeil on us and say the Chiefs superstar can be one of the greatest to ever play -- but he also didn't exactly disagree with the ex-coach!!