Bergeron is a winner. Plays the game the correct way.
no doubt about it. Bergeron is a near flawless player, he does everything well, all zones, with and without the puck, great on faceoffs, etc. He's a player you win with.
BUT, we're being a little unfair to Kessel here. Just because he's not well-rounded as a player, doesn't mean he isn't more valuable. Scoring goals in the NHL isn't easy. Kessel's scoring ability is rare.
Mike Fisher's a well-rounded player as well, but how many would pick him over a one dimensional player like, Kovalchuk? Stamkos? Kessel? (I know, varying degrees of one-dimensional but you get the point)
Only SEVEN players have more goals than Kessel over the past four seasons. Bergeron is right with David Clarkson and Dupuis and Vermette and Mikko Koivu (around 130th-ish, overall)
I think many here are underestimated the gap between the two players offensively.
Maybe he's not a winner (yet) but he's still very young and has been on a pretty bad team of late. Yzerman was once seen as a bad leader and questioned about whether he was a winner. So have a lot of great players. The Islanders (with Trottier, Potvin and more HHOF players) were questioned about their leaderhip before they won cups. So was 99 after the 1983 playoffs. So were many great players like Modano.
Marcel Dionne, Alex Ovechkin, Rick Nash, Jason Spezza - a lot of really good hockey players, from several eras, haven't won anything.
Bergeron is a very good hockey player but Kessel is so much better at what he does that I'd never make that deal if I were the Leafs.