I think McGuire has a bit more class than some of you are giving him - he is pretty tight with a lot of players and its never been his MO to just make things up to glorify himself...he's not Dregger. I'll take his opinion over a baseless internet rumor all day long.
I like Maguire as well, but he does taint some of the things that he says based on the market he is talking too. He may hold information back, or spin it a certain way depending on who he is talking too. I do not believe that he makes things up however.
He was doing a game about 4 years ago between the Rangers and the Pens. Gomez high sticked Crosby, and Crosby flung his head back. All three announcers said that Crosby was diving and that he had to get that out of his game and that he couldn't act like he was getting shot all the time. They showed the replay, and Gomez's stick was actually in Crosby's mouth. All three of the announcers kinda went "Hunh, would you look at that." At the end of the game Maguire interviews Crosby, and the first thing he says is "On that play where Gomez highsticked you, I said you dove. I'm sorry about that, I made a mistake." I always thought that was a pretty stand up thing to do. Most media types don't apologize for the things they say.