I'm in agreement the campaign AI is improved. Especially on the diplomatic front where the diplomacy seems more intelligent and a lot less random then it does on Rome.

I've had too short of an attention span to complete any of the campaigns as yet. Part of the problem is I had a good one going and then I found the time-scale thing and decided to change it and so I'm probably going to start that one over.

The Byzantines are annoying because the Catholic factions are always declaring war on them. I just finish up fighting Venice and then Milan, HRE, and Papal States all go to war with me. Annoying! Oddly enough the Turks left me alone.