Don't no SOS
No.
No Bart was not a smoker. However he may have picked up the habit after his show was canceled.
Yes, in Season 19, Episode 17: Apocalypse Cow
Yes - she is the most adorable thing ever.
I don't think a favorite sport has ever been stated. He's been seen playing baseball & soccer.
Your question cannot be answered with the information currently available. "More Famous" is too idiomatic to provide an adequate answer without poll data from various areas & age groups, perhaps even from different socio economic groups. Without any data of this sort there is no way to really determine which person is more widely known to the general populace therefore any answer would really be speculation, opinion and/or conjecture from the individual who answered.
A butterfly because "no-one ever suspects the butterfly" ('Round Springfield': episode 22, season 6)
yes on season 10 episode 4 (cartoon wars part 2). his voice was played by Matt stone.
Former first lady, Barbara Bush.
Of course he does! One of his loves included Jessica Lovejoy, Reverend Lovejoy's daughter, and one of Marge's friends, whose name was Ruth, had a daughter who he went out with.
Flying ! She has a fear of flying - ever since (when she was a little girl) she discovered her father was cabin crew !
Yes, Friedrich Nietzsche was mentioned on The Simpsons in the episode "Bart After Dark" (Season 8, Episode 5). The character Lisa Simpson paraphrases a quote from Nietzsche by saying, "That which does not kill me makes me stronger."