I can't even begin to gauge a deal like that with mostly prospects in a league with that many teams and keepers. Prospects are guesswork and speculation with added hype for good measure. It is basically what you feel the value of the prospects are relative to Zimmerman imo.
Give me side A. Zimmermann is the best player in the deal by far and I also like the 2 prospects combined better (Hultzen is probably the best prospect though).
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