I honestly have no clue how they have sort them through the classes, cant tell you best side of each one, cant name it one by one, for that info we both must wait for some other gamer to crash in here. I know there are different abilities attached to every character, like moral and tactic ones apart usual skills and attacks. Your moral bar would be filling much faster if you are fighting in a group and when you fill the moral meter you are gaining powerful abilities, so during the fight you could chose should you use lower power attack or wait for mighty one. With those Tactics abilities even though there is possibility that in some cases you are risking your life on the other side you are maybe collecting the power to destroy your enemy and regain your strength. Apart that they were going for bigger battles while they were making this game, I think in a way they were also trying to force us to use our minds more then in previous MMORPG releases if we are planning to win.