I haven't tried the new beta, as I'm actually relatively happy with my version (2.1 I think) right now and I don't want to mess up my campaign, but that said the CAI (CAI means the Computer AI right?) seems pretty cautious to attack with small siege numbers as it is. I remember seeing a rebel army actually superior to a castle garrison/army and they wouldn't attack to my suprise. And the armies are relatively more balanced too. Better than before anyway, but that's not to say I haven't encountered archer spam armies - which are totally useless now. (Again I'm using ver 2.1 still)
I'm not exactly a veteran player compared to some with 200+ hours of gameplay, but overall the diplomacy seems more reliable too. I just had a realm divide event and my allies/vassals have stuck with me, etc. In any event, once I finish this campaign I'll see if I can test the changes you've made. I don't think there's too much I'd change though, except maybe that archer option letting players who like the sniper archers have them, and light cavalry being too strong - which looks like you've addressed. I wish you could add in custom general trait events too - that'd be awesome.
Thanks again for your hard work Darth - I really appreciate it as it's made my game experience way more fun. My favorite addition has to be the naval travel distance enhancement. It was just plain ridiculous before.