I think realm versus realm counts are very simplistic and thus often misleading in declaring something a 'gangbang'. Noble versus noble counts are better. But are even better when considering capital distance to warfront and noble responsiveness/recent-war-experience/average-honour-per-noble. And ability to coordinate effectively with multiple realms.
3vs1 isnt a gangbang if 2of3 have lengthy refit times, the 1 has many more nobles than the 3, or many in the 3 have low honour, aren't responsive, or have poor cooperation.
