Serie A.
- Most competitive of the top leagues - a couple of FMs ago any of six teams could win it. Probably less the case in the current edition, with a resurrected Juventus, impoverished Milan sides and Palermo relegated, but it can still be very open. In my current save Fiorentina won it in 2013.
- Great rivalries everywhere you look - the Milan derby, the Rome derby, the Italian derby (Juve v Inter), lower down there's the Genoa and Verona derbies, etc etc.
- Best shirts, hands down.
Bundesliga... er... well, the official slogan is "Bayern don't always win". (May have made that up.)