Rank/rate the Hannibal Lecter movies

I haven't read it either, but someone I know read it and told me what happens in it.

It said that the novel was written for the main purpose of becoming a movie. 

I don't see The Silence of the Lambs movie as a tragic romance either. The Hannibal novel apparently goes in that direction as well, with Hannibal Lecter kidnapping Clarice and keeping her constantly drugged so that they can live "happily" ever after. GTFO.