Rutherford. No one else comes close to solving non-engineering problems like him.

Edit: he is not the best at it. He literally does it like nobody else. All others fall into two camps: diplomat or a troubleshooter, like they approach problems with the mindset that they have to be repaired for peak performance. There is a dryness to their approach that feels comfortable to logical folks.

Rutherford demands you dress like Twain and yell it out in a steamboat. No one does it like him.