I have far more wars in ck2 than eu3
Breaking truce in eu3 -> stability hit, and if you big this can be very bad
breaking truce in ck2 -> who cares, if you big you don't care what other rulers think (except the pope... anti pope helps here)
--> much more wars in ck2
But the "Raised Levies too long" negative opinion mod forces me to have peaceful periods between huge wars (much more than a truce).