La Liga is too boring because Real and Barca are too good. Doesn't mean they can't get the same results against the likes of Siena or Lecce. Barca destroyed Napoli with 5 goals ffs. Serie A is more interesting because there are 2-3 good teams fighting for the Scudetto, 4-5 other decent teams fighting for a CL spot and there is not such big gap between the good teams and the decent ones. There is no dominant team in the league, that's why even smaller teams can make it difficult for them occasionally.
I'm sure I have read this comment for like 20 times already, under different names. Even people are boring when talking about La Liga.