I was too old for Harry Potter when it came out and was voraciously reading adult books at the time, so I don't have the same emotional attachment as someone whose introduction to reading was HP. For me, that series that got me into reading was The Babysitters Club.
I also haven't read BSC since I was about 8 and don't understand adults who obsess over a series of mediocre children's books. There are just better books out there. 1/?