The Lakers have the best players overall. Everyone knows Kobe is really good, but Gasol and Odom are somewhat underrated. Gasol isn't an athletic freak like Howard, but he has some of the best post moves in the NBA, and Gasol completely outplayed Howard(in the US-Spain gold medal match) in the 2008 Olympics. And to have Odom off the bench is incredible depth. As a Cavs fan, I'd love to have him as a starter. Bynum has been a bit shaky ever since his injury, but he shows flashes of good play, and he can at least be a solid contributer. Regardless of who wins the east, the Lakers will be favored in the finals. I think the Cavs have a better chance against them, since they are better overall than the Magic and have LeBron, who is playing even better than Kobe right now, but even for them it would be tough.
EDIT: The Cavs go quietly into the night. LeBron just looked flat out tired, and I can't blame him after playing the way he did. Whether fair or unfair, he stopped getting calls on his drives, shots didn't fall, and the Cavs generally played sloppily. Alas, time to now focus on getting a better post presence in the offseason.