Contador on paper and in pure talent. Though I'm convinced that he can be pushed to his limits by a diesel like Basso, at least in a race as hard as this Giro. Contador has more explosive power than anyone, though it would have been interesting to see him in the third week against Basso in this year's Giro.
Probably he'd have attacked in his usual out of the saddle style on the Monte Terminilo and won the stage. He may have even struck an KO'd everyone on the second mountain stage at the end of the second week. But I don't think he would have been able to do the same on the Zoncolan against Basso in the third week. Perhaps I'm wrong, but in the past he seems to have been less dominant in the third week, as at last years Tour. And when he wasn't in top shape, or so he claimed, Riccò out-climbed him at the Giro 2008. Of course he still has 4-5 years for a margin of improvement, and usually that favors an athlete's thrid week performances.
Still I'm curious to see this Basso, if its this Basso, at the Tour against him and Schleck during the third week. Whereas this Giro was all for Contador. What a pity he decided to skip it. I'll bet having heard about this year's race, if not seen some of the key stages, he has a bit of remorse. This Giro was a historic course, and a great champion like Contador would have made it even more spectacular.