And likewise, as a Man U fan, you're obviously going to prefer Fergie.
I'm not a Man Utd fan. I don't particularly like Ferguson either. My analysis is based purely on the achievements of the two managers. Your's seems to be based on partisan loyalty. As such, let me offer some of my own
Ron Saunders took Aston Villa from the second division to :-
Second Division runners up 1975
League Cup winners 1975,1977
First Division Championship 1981
He left the club 2 months before winning the
European Cup 1982,
No one, not even Tony Barton has any doubt that the glory was Saunders'.
Anyone with a true understanding of English football history would know all of this and would be able to put it into the context of the achievements of Shankly, Clough et al. I think it highlights quite vividly that, part of what makes some managers great is the myth that they create. Ron Saunders as one of the greatest managers of all time ? I bet most of the football fans of today, have no idea who he was. Why ? On the basis of achievements ? No. On the basis that he didn't create the myth of personality that Shankly and Clough did.
But don't get yer knickers in a twist, eh?
I would suggest that if you don't want people to be offended, then don't offend them.