In my last game (very enjoyable), I built the Knights Templar.
I must say I really like the Crusaders. After a while my entire border was ridden with fortresses and barricades which made it really hard for enemies to invade later in the game (even though i had one tile spacing between barricades).
And with a steady income of tough 5.3.1 units, I could have all my cities produce wealth (unit support would kill me otherwise) and I could keep up in science and do most of the research myself on emperor with only one city taken to that point!
I must say I really like the Crusaders. After a while my entire border was ridden with fortresses and barricades which made it really hard for enemies to invade later in the game (even though i had one tile spacing between barricades).
And with a steady income of tough 5.3.1 units, I could have all my cities produce wealth (unit support would kill me otherwise) and I could keep up in science and do most of the research myself on emperor with only one city taken to that point!