Clarkson (obviously) and Bozak* for the Leafs. Saw some posters saying Gardiner, which I totally disagree with. Guys lost right now, but we've seen him be a more then capable second pairing defender with more upside, and that doesn't just go away in 30 games.
*As for Bozak, he might be having a good offensive season because of inflated PP numbers, but to me he represents the lingering mediocrity left on the leafs. The guy is the first line center on the softest, weakest possession line in the league and he is a huge contributing factor to these huge weaknesses. Great value as a stop gap, but when he is finally gone or loses his spot on that line will be the day the team finally takes a step away from a bubble team. -.-