I know there is no best class but there is a worst class. I tell you there is and the worst class is. Drum roll please *Drum Roll* BARD! I mean cmon a bard is useless I'll soon tell reasons why but every other class has its own role to play for example
Fighter-Tanks great big tanks and always changes the tide of battle!
Wizards-Are not as tough as tanks but can do a lot of magical damage the weakens the enemy therefore making tanks kill the enemy easier
Clerics-Backbone yes everybody needs healing
Thief-You need to know whats ahead of you and you are not just crazy enough to walk over a lotta traps without a thief to check em right?
Druid- uhh little clericy
Bard-Only thing is helpin out with it's crappy music.
Okay I heard that bards are a little bit of everything partyly mage partly fighter and thief (I think cleric or is that in the 3rd Edition) Master of none I mean none at all. Oh no gotta go be back with more reasons in a jiff