Probably because there are no Heat fans on this board, and no one watched them regualarly.
Watched them last night and they look good. Shaq is leaner and looking good. He is not obese, and if the AMA thinks so, they've changed the definition to something unjustifiable.
Wade is truly a great player, and between he and Shaq they should take the East and possibly the league. We'll have to see what happens when both Miami and SA are healthy when they meet.
The Spurs are only favorites by default, as the other contenders haven't established themselves as being legitimate. Both the Sonics and Suns are young and uproven. They also rely to a great extent on outside shooting, and no team in the NBA has won a championship with outside shooting (although the Bulls did a lot of that)
The teams with the dominant centers win, and that means Shaq and Duncan. Not Wallace or any of the other pretenders like Yao. But a lot can happen between now and the end of the regular season. Shaq needs to stay healthy, and TD and Manu need to get healthy.