So, any thoughts on the matter of how AI balances out its armies and troop production buildings?

I find that the AI still has an annoying preference for crappy troops. Especially the French crossbow spamming is annoying as hell.

I suppose it could be partially caused by the AI having early buildings to build crossbowmen, and at that time they are somehow the most cost effective units based on the AI behind the troop training. It seems that the AI will raise the troops with little regard for having good infantry to back up the missiles.

Any other odd balancing issues regarding army composition and buildings?