Maybe we should collect similarities between the two trilogies (maybe Hobbit spoilers!):

Episode I / Hobbit AUJ:

- Contains an annoying character that is supposed to be funny: Jar Jar Binks / Radagast

Episode II / Hobbit DOS:

- Contains a forced awkward love story between two characters: Anakin & Padme / Kili & Tauriel

- Contains an exaggerated sequence towards the end of the movie that is supposed to beef up the action. Both were filmed against Blue Screen during additional Reshoots: Anakin and Padme inside the Droid Factory / Smaug VS Dwarfs inside the Forges of Erebor

Episode III / Hobbit BOTFA:

- One of the main villains dies within the first ten minutes of the movie: Count Dooku / Smaug