I want the AI to be as hard to beat as possible so I give it all the help I can, I use AI Tank Heavy ON, (all the options on, except for sound) and when playing CG I set the difficulty to one of the Hard(er/est) depending on my mood.
Okay outvoted I just thought it would be nice to be able to produce battles with a smaller tank contingency.
Tank heavy makes no difference to AI difficulty.
Perhaps makes easier if they rush forward without infantry. Especially MBT and expensive gear reduces the amount of eyes AI can buy and it plays best when it has eyes.
Setting AI advantage points over 100 is what increases the difficulty and to a lesser degree map settings.