because he's the most believable and flawed of the assassins.
people like ezio because he's a charming ladies man who's extremely self confidant and has the skills to back it up. I.E the kind of guy everyone wants to be. its a power fantasy thing, its why that generic non-character archtype is so widely liked and used in fiction.
so when you compare a flawed yet believable character, to the ideal fantasy man then he's going to come up lacking for alot of people.
Ezio was far more interesting imo, the only reason I like Connor is because he has all the extra gadgets. He's an annoying character imo, all the other assassins were focused solely on the order, Connor keeps whining about his village all the damn time.
Haytham is by far my favourite character to play as. More interesting and better accent.
People who want another SW Battlefront: 213 "Gnarly, you are clearly more educated than me" - OblivionScamp. GT: Charlievil