Who wins American Idol: Bowersox/Magnus/James or Dewyze?

Matthew and Nate put the following on the board:

Who wins American Idol: Crystal Bowersox/Casey James/Siobhan Magnus or Lee Dewyze?

Matthew reluctantly chose Crystal/Casey/Siobhan and Nate chose Dewyze.
Just to make this bet even more bizarro, Nate allowed Matthew to add Casey James and Siobhan Magnus to his side of the bet.

Check out the 4-22-10 podcast between 23:51-27:03 for this bet.
Also check out the 4-23-10 podcast between 31:11-32:45 for the addition to this bet.