Let's say you're fighting in a 2 vs 2 match on land or on water, with a civ that has an above average fast feudal, and fast castle (i.e. Huns). The map is medium sized, such that it will take a very long time for the opponent to move their units to your base area, and all the players are equidistant to each other. Here, would it be preferred to do a feudal match, and would a fast castle be too risky? What if you wall your resource sites with palisades to protect you against drushes?