I must have missed the memo about a "default strategy". I was under the impression that there wasn't one, but if there was one, it would be Play the map.For long-term warmongering, Spiritual > Agg. Since BTS' "default" strategy is to tech to Renaissance+ units, Agg does almost nothing during that period, while Spi does.
Even assuming renaissance troops are the "default" troop of choice, all gunpowder units get C1.
But what's the point of getting 5+ promotions if it's Cavalry v. Longbows?
What's the point in playing at a level when you can have Cavalry vs longbows? If you can do that consistantly at diety, my hat is off to you and your should probably find a harder game to play.