The first one sets up the story and has a good story behind it. The second one just turns weird especially the ending and the third one is more on the story of katniss rather than violence. It has a fair bit of violence but not as much as the other two.
I don't think any of the Hunger Games movies are really my type of movie, but I watched the first one mainly because of all the hype about it, and I guess I was just curious. I'll probably pass on the sequels, unless I find the DVDs very cheap at a garage sale or flea market, or if someone nominates them in a HoF here.
Fair enough. Have you read the books?