Edit: Rooney, all time best goalscorer and winner of every single trophy should be in top 5 of every United fan. Ffs people!
Charlton, a Ballon d'Or winner; a man who was a part of both the Busby Babes and the 1968 European Cup winning side; for decades our record-holder in both goals (as a midfielder) and appearances; a perfect gentleman and the personification of United itself, should be in top 5 of every United fan.
Cantona, the catalyst for our 2-decades long domination and officially the coolest to ever exist, should be in top 5 of every United fan.
Giggs, Scholes, Best, Law, Robson, Keane, Beckham etc.
There're no certainties in a list of personal favourites.