18-Valve. (pithy) said:
1. I don't subscribe to the myth that climbs have to be ridiculously steep to break the time trial specialists. The Giro will have plenty of hard climbs, weather permitting. I can't think of a recent GT that had more hard climbs over 1800 m.a.s.l. Everyone complains about the lenght of the mountain stages, but I don't think it matters that much. It will be incredibly tough.
2. No, I don't think Wiggins would have caught him on the climb itself, but the gap wouldn't have been huge. I think it was more significant that he would have lost time on La Toussuire, a climb that suited him even better. That stage was more difficult and was raced much harder, though. In my opinion, Froome, Pinot, Nibali, VDB and Rolland were all stronger than Wiggins in that stage.
Don't let that long ITT fool you. It's an atypical one and it's also balanced by three hard mountain stages and a couple "easy" ones, too. No "raids" will be necessary to take back a couple minutes. There will be plenty of opportunties to take back time.
3. I don't even know if Purito starts, but if he does then he'll certainly be a favorite as he's arguably a better climber than the both of them.