Top 3 includes Catwoman, Green Lantern, and Daredevil in no particular order.
Top reasons why I think they are the worst:
- boring
- uneventful
- uninspired (characters and/or plot)
- forgettable (although I guess they're sorta kinda not...since I still remember they existed, and how boring they were)
And no, I don't care for the source material. I take these movies as their own thing. I do notice (and point out) differences, but they're never a factor when I judge good or bad superhero movies.