I can understand Detroit fans not liking him, as he is outspoken, is very good and has beaten Detroit in the finals recently...but as a Blues fan, there hasn't been anything on the ice in a Blues-Pens game to cause me to hate him.
This is a popular misconception. Joe Sakic beat the Wings in 96, 99, and 2000 and while I didn't like him, it was different. I didn't like him because he beat the Wings, but I respected him and the way he played the game. He let his skill do his talking. He didn't take cheapshots at people when things didn't go his way. The truth is, Wings fans (well at least me anyways), started to dislike Crosby after Game 4 in the 2008 Finals. That was the game of the famous 5-3 kill where Zetterberg stopped Crosby right on the doorstep and killed off the penalty. After the game was over, the Wings are skating back to the locker room and Crosby skates over and gets in Z's face. WTF? He's supposed to be a leader and face of the league and he's trash talking to a guy that just beat him because he's a sore loser. Since then I've opened my eyes and seen him do A LOT of shady things (slew footing, slashing every single time he loses a face off, elbows, sucker punches from behind, etc). Regardless of the outcome of the 2009 Finals, I would still hate his guts today.