Nor did Riis know whether Schleck’s attack on the Port de Bales would have been successful, had his chain not come off. “I’m not sure because Contador was on his way back to Andy,” said Riis. “To be honest, I don’t really see one of them [as being] stronger than the other on the climbs.”
While I would have like to have seen Contador wait, I think it's a bit disingenuous to suggest that Schleck is stronger. Not even Riis did that, but a lot of posters on the forum are.
Schleck didn't lose the Tour over this. He would have needed at least an additional minute over Contador to even have a chance in the TT, and, as Riis points out, Contador was on his way back up when Schleck dropped his chain. The attack wasn't sticking, and the two riders are, at best, even in the mountains.
Sorry to create another thread for this, but the idea that Schleck is stronger and/or will now lose the Tour over this has kind of invaded every thread on the subject. So one stone: several birds.