I look at how tight things are out West and it looks wide open. The way Houston is playing, they look like they can beat anyone but I still think the favorite is San Antonio. The Spurs are too solidly composed for playoff basketball for other teams to deal with. The Suns could still surprise teams, the last two games they've looked like they've figured out how to play with Shaq. The Lakers are offensively potent but defensively weak. On top of that there's still the Warriors, Jazz, Hornets, and Mavs to consider.
Out East, I think the Cavs and Celtics can definitely beat the Pistons, but I'd agree Detroit is the favorite. Orlando isn't a pushover with Howard manning the paint, and Turkoglu has been playing well.
Should be a great playoffs!