Board Thread:General Discussion/@comment-7503158-20151003110949/@comment-24152851-20151003141720

That's debatable. Each Doctor has their own skills, personality, and abilities.

Some Doctors were more compassionate and friendly, others were more strategic and manipulative, while some were really cold and mean.

For instance;

The Third Doctor was a badass grandpa who was a master of martial arts.

The Fourth Doctor was quirky and unpredictable, but managed to become President of the Time Lords.

The Seventh Doctor was a trickster who outsmarted his enemies.

The Ninth Doctor was a tough guy in a leatherjacket who was cold and unforgiving.

The Tenth Doctor was an all rounder, who was a charmer, a manipulator, and very vengeful.

The Eleventh Doctor was a man child, but was exceptional at fear tactics, able to make armies run away by saying his name.

However, I would say the most powerful Doctor is the War Doctor. Simply because he was the only Doctor created to be a warrior who fought during the Time War.