Couldn't find the Gudbranson trade on the list...would have been close between it and the Eriksson contract.
Chose Eriksson because of the impact on the organization has been huge. First, he didn't live up to expectations with the Sedins, so the whole idea of staying competitive while the Sedins were still playing didn't work. Second, it was the overpayment of overpayments. Third, the structure of the contract hamstrung the team for years. Horrible, horrible deal.
Disliked the Juolevi pick over Tkachuk at the time but I don't think that story has finished yet. The full impact won't be known for a few years.
Edit: it also seems a little weird to have the Myers contract as an option...