Eibar - Aia 155.5 km
Evil climbing followed by an evil uphill finish. Nobody comes to País Vasco for rest and recreation. Below is the profile of the route they will be going up Aia the first and last times (profile is from another edition and doesn't correspond exactly with how they do it today, its just to get an idea of the difficulty)
Triumphant pitiful cobbles-avoider of the day: Joaquim Rodriguez
Seems pointless to point to anyone else on a finish like this, it's no big mystery.