She smart...but she ain't THAT smart. She's no doubt shrewd... in a politically calculating way that smarter people in her life have taught her. Most of the smart nikkas in the room been killed. Aemon, Olenna, Tywin, Littlefinger, Ramsey, Roose, Catelyn, 3 Eyed Raven, Oberyn, Margaery etc.. She wouldn't have put together most of the pieces she has if it wasn't for Bran putting her on game. She can hold her own with Tyrion who has been a fukk up since he left Kings Landing. I would say he's still smarter. They lead you to believe that she's smarter cuz she figured out the army aint coming Winterfell cuz she knows Cersei is an evil bytch and Tyrion didn't. Then the screen pans out to show Professor Bran in the cut and you know how she found out. Same thing with the Littlefinger shyt. We've established Bran is the smartest muthafukka ever. She damn sure ain't smarter than Samwell. She ain't smarter than Varys. Davos might be smarter in some ways and he didn't come from a noble house.