Question of the day: Which SP for NYY?

Your turn to play owner, GM, judge and jury. if you could have only one, which free-agent pitcher should the Yankees choose? C.J. Wilson? Mark Buerhle? Roy Oswalt? Edwin Jackson? Or Yu Darvish? I'll have a column up on the website soon outlining the difficulties the Yankees will have making that choice this off-season. In the meantime, think it over: If you were Brian Cashman, which one would you reccomend? And if you were Hal Steinbrenner, who would you make out the check to?