Fiorina certainly wins that matchup at least. Mayer arguably took over a no-win kobayashi maru situation and managed to at least not have it go up in a fireball. But, personally, I'd settle for a significantly smaller payday than Mayer simply to not make a further mess of a company going down the tubes.

Fiorina, on the other hand, caused active damage to HP and had at least some role in the evolution of what at least became probably the most dysfunctional board in a large tech company ever.