Well, it seems like you have a bit of thinking to do, even before thinking about the research itself. Let's see if we can get you on the way to the best choice.
Existing knowledge is a good basis for research. So your first step will be to think about what you know about each of your choices. Are there any of the works on your list that you have not read or don't know as well as the others? You can cross these off your list, since they will take more time to research and write about.
Feeling positive about a piece of literature makes it easier to research. Your next step is to think about how you feel. Of the remaining items in your list, are there any that stand out as your favorite or least favorite works? Cross out the least favorite ones and keep only those you like most.
Thinking about what you already know and how you feel about the items on your list should help you narrow it down considerably. If you have more than one choice left after this, try going through the process again until you have only one item left.
I hope this advice was helpful to you. Good luck with your research.