He is so anti-clutch, I'm not sure what to think. He was ok his first year with the team, but three consecutive years of terrible performances against Chicago, and an embarassing performance against Boston last year in the finals.
And just when you think he's got everything together, he let 3 goals in on 7 shots against Buffalo the other night. Schneider isn't prone to poor/inconsistent play and has performed well against those aforementioned teams this season. Luongo didn't play against those teams for obvious reasons, regardless of whatever excuse the team gave.
Schneider, as any backup, still benefits from playing so few games. Look at Tukka Rask's stats in Boston this season, those would go down if he was their first goalie.
Regarding Crosby, I hope he doesn't reach that insane level of play again this season, what with Malkin also being so good right now. I don't know if any team could stop the Penguins in that case.