On the other hand, you just need to know how to play as the Castle faction (there are no inherently good or bad factions). I just don't know how to play as the Tower and Necropolis (I simply don't like them) and the Conflux. But my friend crushes me when playing as the Tower, and another friend knows how to win with Necropolis using the Conflux.
To each their own, IMHO.