Based on first impressions from reading each one, not overall after re-reading, as then the order would change. Also note, the bottom three aren't hated, they just had to be placed. I like them, but the others are better lol.

• 1) Deathly Hallows (however, after re-reading this, it moves down the rankings as i dislike it more and more. I thought it was perfect after the first reading).
• 2) Goblet of Fire. funnystoryactionfunnystorryactionfunnystoryactionDEATH.
• 3) Order of the Phoneix (this was only placed here becuase 6 has to be lower down the list - but I might lower it
• 4) Half Blood Prince - this has to fall due to it being so unsatisfactory with the revelation of the prince, but the cave scenes and dumbledore being an actual human rather than just a nice headteacher stops it being in the bottom three).
• 5) Prisner of Azkaban (although on second thoughts I might move this up lol)
• 6) Chamber of Secrets
• 7) Philosopher's Stone