While I'm at it, reasons why people would hate each movie:
First two: long, boring, too close to book
Goblet of Fire: lacks important plot details, focuses too much on comedy
Order of the Phoenix: longest book shouldn't equal shortest movie, lacks the "magic" of the other films
Half-Blood Prince: too much comedy and romance, doesn't focus on the darker things enough, anti-climatic ending
Deathly Hallows Part 1: hardly anything happens
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SuperNiceDog has won.