I think we would have lost the game vs the Steelers. The Steelers got on a roll late in the season, and have been playing great for about a month and a half. They would have had more momentum than us (We took the Dolphin game off, and most of the second half of the Jet game). Their defense is better than ours, and Roethlisberger isn't the same rookie QB that he was last year. Don't forget, 2 of the 5 Steeler losses were without him, and one was his first game back (The Indy game, and they learned from that loss, as well as the AFCCG loss). Roethlisberger is showing that he is a great young QB, and if they win, he will be the youngest QB ever to win a SB. They also added a great weapon to their offense, TE Heath Miller, and they are using him correctly, a deadly red zone weapon, as well as a sneaky player who seems to get open all the time.
I just think that the Steelers have hit their stride at the right time (now), and the Pats hit their peak in the Tampa Bay game. Not disregarding what they did to Jacksonville, but also the Pats might have taken what they did to Jacksonville, and thought that all they had to do was just show up in Denver to win.
Hopefully everything meshes for the new and old Pats come December next year, and hopefully next year at this time we are talking about our opponent in SB XLI.