I have room and the money to expand in counties within my demesne. I'm assuming the first should be my capital. My question is should I build baronies or cities? If I build baronies, is it better to hold on to them and give away other counties to keep myself below the demesne limit, or give them away to a vassal? If I build cities, is it worth the wrong holding type penalty to hold onto them, or will I get more tax income by giving it to a mayor?