As someone who supports teams based on their uselessness (Mets, West Ham, Washington Generals) I have to say that the Mets doing well doesn't sit comfortably with me.
that's how I chose my teams - useless but good colours (no red teams). However, Mets, Pirates and Twins are all doing well...it's weird. I chose St Louis for NFL, and they are still probably crap, even after winning yesterday.
Even the Mets' hitter are doing pretty well now - they did some nice recruiting.