Does anyone know if the AI is one broad spectrum or if it's individualized?

Just for my benefit for thinking about it:

Maybe I haven't been able to find it on the Boards or on any website, but if the AI is simple in it's parameters (Simple as in it meets a certain condition and performs) and not geared towards a race then we can come up with formulas based on generalizations.

To better explain. Does the AI have a parameter: (to use my own brand of dumbass programming language)

IF Jotun, Turn 1
IF Have Castle, Hill Fort
DO Produce Jotun Woodcutter 100%

or is it that certain things are flagged as a certain Category like say all Cavalry are flagged in every race or province and are created when a certain command is given no matter the race.

So when we say "The AI should produce 50% HI unless they are X, X, X, race where they should focus 20% more on Ranged/HI" are we making comments for only one race or do you want broad generalizations. As in the Castle and placement debate.