Which is your favourite Star Wars film?

For me it has to be Revenge of the Sith. I know that it is a bit corny sometimes but to me it is the perfect ending to a great trilogy and a great beginning for A New Hope. In that movie, you can fully see how Darth Sidious has maipulated Anakin and transformed him from a hopeful and full of kindness Jedi to a Darth Vader, a merciless Sith. I don't really know how else to explain this, and that's partly because English isn't my first language, so I hope that you understood what I'm trying to say :)