All clan chould be in the choice, actually now the choice not make any sense.
I just got vassal title, have done nothing at war, and kings give me a castle even i not voted, than later on, i have build a big 1000 men army, destroyed 3 army, siege a city, take that, and killed few lone army after the siege who attacked me, and i'm not even in the 3 for the city, and i have 92 reputation with the kings.... just what the hell !
And agree on your other points too !