Mine is light and L from death note . They were potrayed as some kinda
of super genius characters but in reality it felt like every other characters shared one braincell and light and L were average .
EDIT : I have come to the conclusion that so may of lemmings didn't get what my post was about . I don't care if a charecter is an asshole or isn't very good in other aspects of their life.
Hbomberguy made a video about it. There's no nuance or foreshadowing in that Sherlock. He exists just so Moffat can feel smart that he knows something the audience can't possibly know yet, nor does he give them a chance to figure it out.