It all depends... depends on the configuration of your league. Is it a standard 5x5, with average and whip? Also, what are the roster configurations? How many at each position. This affects position scarcity.
Without knowing that, can't give you the most accurate answer possible.
Without knowing this and kind of guessing as to the most popular league settings, I would have to say #1 Arod, #2 Pujols... after that it does get a bit tougher. Alot depends on if you think Guerrero is healthy, and he did put up very good numbers after he came back from the injury, so I would say he is healthy. There are a few others to consider too like Soriano, Helton, Sheffield, but need to know your league settings first.