New in a game I always ask myself which class to choose.
It would be nice if someone could write a little summary/advice for this, a few pros and cons on those classes
Like x is a class good for newbies but still is powerful in higher level. y is hard to start with but has many strong traits later on. z is more of a cooperative playing class only play when u know you are working in groiups.

You will find short class guides here: viewforum.php?f=46

You can also make every single class without running out of character slots, so experiment and find you favourite.