I'm pretty sure Intxausti is peaking, and I think Horner is peaking too to defend his crown. Samu will be thinking of the Ardennes, but will certainly be at something very close to peak because of the importance of this race for his team... I am pretty sure that an absolutely on-peak Samu would be able to drop both Horner and Intxausti. Then again, he may need longer climbs than these to do it.