This is just a case of perception versus reality. Have Sidney's teams done better? Absolutely. But stats-wise:
Ovechkin: 28 GP, 20 G, 20 A (1.42 PPG)
Crosby: 62 GP, 30 G, 51 A (1.32 PPG)
Just because Ovechkin's teams have flopped does not mean that he has not produced in the postseason. He obviously has a smaller sample size, but nothing tells me he's all of the sudden going to start being terrible in April.