I definitely agree with the ranking of those four players but you might want to throw Martin into that mix; I don't think people felt his leaving was no big deal. Yeah, he might be at number 5 for me on that list, but his leaving wasn't easy for me to take either.
One place we differ about Parise is that I bought his crap about wanting to stay, so I think his leaving stings me more than it does you. Overall, however, Nieds' actions stung more than Parise's ever will.