Question time: In the TV series "Sherlock", who is smarter between Sherlock and Mycroft?

I don’t know about the TV show, but in the original Conan Doyle stories, Mycroft is considered smarter. However, he’s also lazy and is therefore more of an armchair sleuth. Sherlock occasionally consults him, but he does the footwork himself (with the assistance of Watson).

It’s Sherlock. He fools Mycroft that Irene Adler died a 2nd time, and there’s also in 3×01, the point of the wool hat. He makes Mycroft believe that the hat is his, while it was lent by an appassionate of trains who makes Sherlock follow his case for the episode.

Their sister is smarter than either of them.

Mycroft.
@janbb yes, so much so, that they wrote themselves into such a corner, that they had to nerf her into a quivering baby, otherwise there would have been no way for Sherlock to beat her.
My, what a face-plant of a final episode.