With Andy Schleck gone and Contador banned, the pressure in theory should be squarely on Wiggo's shoulders given his expectations. He had big expectations last year and crashed out and Cadel managed to avoid bad luck for once. I can see why you might not like Cadel, he never got along with the media, but I always felt bad for him before last year. I think one of the others to watch will be Robert Gesink, he was only the second non-American to win in California and you know the Americans (Levi, Horner, Zabriskie, Danielson, and Teejay) are always super motivated for that race.
Cavendish vs. Sagan should be awesome. (Jimmy, Cavendish would be a Robbie Frey type on the gridiron - fast twitch muscle). It will be interesting to see how much Sky is able to support Cav in the leadout given their yellow jersey aspirations. Then again, Liquigas might be supporting Nibali for yellow as well. Too bad Tom Boonen will be staying home to prepare for the olympics.
Other things to watch for - might Teejay aim for a mountains jersey? How will Ryder and the Garmin-Sharp team (new cosponsor) fare after their Giro win? How much drama will be surrounding Radio Shack, with Andy gone, Frank possibly not getting along with Johann but Johann staying home due to the USADA investigation? Plus there was some sniping between Andres Kloden and Chris Horner, sounds like that team has plenty of issues to deal with.