Something about Milan winning the Champions' League seven times (last one in 2007) second only to Madrid. (Hint: They are footy royalty; it might be good to include them.)
Inter's won it three times, most recently in 2010, and are tied w/ United.
Forbes' most recent list (2013) of the most valuable football clubs has Milan at 6th, Juve at 8th, Inter at 14th, and Napoli at 17th. Milan & Inter are going to lose ground to Juve in the future, as Juve is beginning to reap the rewards of building their own stadium.
The extent that Italian clubs, the Azzurri, or Italian footy in general gets overlooked around this board is fairly incredible.
Man City has won one EPL title financed by a sheik, and apparently they are now amongst Europe's elite. Yikes.