What might make it real interesting is if the numbers part of a character's stats were hidden...
I wouldn't mind about hidden stats numbers, but i should know if a character has high-average-low martial stats, for example
...Visible things would also be powerbase and loyalty because those are things that can be seen in the day to day...
Sure, the loyalty of a disloyal character will be the last thing you're going to see once yo turn your back to him.
Loyalty is a complicated thing, everybody wants to seem loyal, specially the treacherous characters, and sometimes you're able to perceive this duplicity, but i don't know how to show this in the game