Druids always seem to be the choice of class for people who know they aren't really very good at the game. So they choose a class that they think is good at almost everything to make up for their own deficiences. Unfortunately it is almost as boring to play as a wizard. So for that reason alone, go wizard.
I am HALF joking
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Edit: Ok, let me re-phrase that a little. It's almost as if when creating the game, Verant said "we know there are going to be people who suck at this game so we need to create a class for them, otherwise they will just quit. Ladies and gentlemen, may we present, the druid." Seriously though. Probably the thing that sticks out is even a well-played druid will hardly be noticed. Their massive utility is almost their downfall. They are a class without extremes. They do what they do and only a retard would not be able to do those things. A well played wizard, or ANY other class for that matter, will always be noticed.