According to Rasmussen: 58% of Fans Expect Colts’ Victory! Also, who watches the game:
"Overall, 57% of Americans say that they’re planning to watch the showdown in Miami. That figure includes 63% of men and 51% of women. Most (56%) will be watching at home. Another 33% will be at the home of a friend or a relative. Just 8% say they’ll be at a sports bar. Football fans are a bit more likely to watch at home while more casual viewers of the big game are a bit more likely to be found at the home of a friend or relative."