Ok, it was Steve McNair on the list, not Eddie George... that's two totally different worlds when you're talking about playing through injuries...
McNabb shouldn't be on the list for one game he played on a broken ankle. I'm thinking they just threw people in at the last minute to meet a deadline...
Ditka was on the list because, as he says in his Levitra commercials, he just doesn't go down...
About Favre, playing well over half a season with a broken thumb on his throwing hand should be enough, but let's throw in that he's been involved with injuring linebackers, has played his entire career with the same medical condition in his hip that ended Bo Jackson's career, and if all that's not enough, throw in there that he's still throwing for 200-300 yard games after all the crap that's happened to his family the last 3-4 years (you can't take painkillers for emotional distress), and if none of that's enough, there's always the consecutive start streak.
BTW, Mark Schlereth was an honorable mention for having kidney stones surgically removed, and being back on the field the next day, and *heh* Bill Gramatica was a dishonorable mention for blowing out his knee while celebrating a field goal.