How has the decision to let Hunter walk and trade Johan panned out for Minnesota in the early going of 2008?

Last year we created the Hands on Runs formula to determine how much weight an individual player carries in his line-up. Through the first part of May, which players have been most valuable?

The Royals have been major players in the free agent market, making a big run at Andruw Jones while signing Jose Guillen, but they did lose David Riske to the Brewers.