Which Castle do you prefer to play as?

I prefer to play with all factions a little bit, because even if you plan to play with a specific faction in a tournament, you need to know your opponent! You need to know when and how many units they will have, and what their weaknesses and vulnerabilities are. For example, the Stronghold's Behemoth is a powerful beast if allowed to fight, BUT if you let it... it's vulnerable to magic, you need to use that. It's a melee unit and not very fast, so you need to use that too.