Just bought the game today, disc version, really cheap. I'm loving it.
Started as a very minor Iberian noble, just one province, my leader wasn't a particularly able ruler so I didn't expand, I just focused on making money, a few improvements, and preparing my children.
I had 3 children. The eldest, Mendos I think, had the "quick" trait, which was awesome, not genius, but still, awesome. He had a twin sister, Maria, who did not have any attributes at the start, but through careful preparation on my part, she got pretty good intrigue and diplomacy.
The third child, the youngest and runt of the litter, had my ruler's name, ironically. He was born with "weak" trait, and when I tutored him to my court holy man, the third child got really bad traits. I mean, zero on a few traits, the highest he could get was 5 on learning.
Mendos grew into a brave leader and warrior, with something like 12, or 13 in martial and diplomacy, and 14 in stewardship. My heir was pretty cool. I married Maria off, to a soldiery lord somewhere, I don't really care. I had the third son assassinated, nothing bad happened, went off without a hitch.
When Mendos became ruler, he was already betrothed to an adolescent girl of a good house. The girl, at the age of 13, already had better stats than Mendos. Yeah, the girl had genius, diligent, and a lot of other awesome traits. So, despite not getting prestige, I married Mendos off to her. I needed her DNA in my gene pool.
I love the family aspect of this game. However, on to other things. I want to see how many men the emir of a neighboring Islamic country can raise, but I don't know how. I can only raise about 300 men ( at best ) and my vassal(s) about a hundred. I could save money for mercenaries, but if the enemy outnumbers me too much, I'll have to decide what to do.
Tl;dr I love the family aspect of this game, it's just generally awesome, and I wanna find out how to check the enemies' troop numbers. And anything else related to military, really.