Ha ha awesome, though I personally think divination is at the top.

Just think, it was Voldemort's knowledge of Trelawney's prediction that made him attempt to kill Potter as a baby, at the same time destining his own downfall. Thus, divination was what led to the downfall of the most powerful dark lord of all time.

Also, the way that Rowling was able to tie everything together from Voldemort, to Harry being a Parseltongue, to the basilisk. God that series was epic.

Thanks for the trip down memory lane.