No strategy should be based on an imperial age unit. the only "unit decision" you need to make in a normal random game is which of the several "dominate" strategies there are... these are the skirmisher rush, skirmisher+scout rush, skirmisher/ spearmen rush, men at arms rush, archer rush, tower rush, or if on a water map, the gally rush or "grush"............ because a truly good playayer will adapt to what happens in the game... e.g. if i see my opponent mining stone heavily 8mins into the game, i can be sure that he is either going to mass towers for defense, or for offense, so i will use my scout to search for his forward villagers and try to either attack before he reaches feudal with a few militia and later skirmishers... or if he is using the towers for defense i will skip feudal attack and boom straight to castle and build knights. it's all about adaptibility... the only decision that is a semi "guess" is what initial attack to do... going into a game and saying "i'm going to make paladins as my main attack" will get you killed nearly EVERY time against a player who knows what they are doing