Never liked Favre. Had a tone of respect for his abilities at one point, but I alway thought the aw-shucks routine was transparent. Didn't like him flopping for Michael Strahan. Didn't like him getting publicly involved in Javon Walker's contract talks. Didn't like the games he played with Green Bay last offseason, and don't like the fact that he'd consider playing for the Vikes. It has nothing to do with his play on the field where he clearly was one of the best ever.
That said, the Jets let him go after last season with nobody to replace him. Injured or no, that says a lot about what he's got left in the tank for Minnesota.