Personally, for your first thesis, I have seen the idea of analyzing the psychology of the novel and the characters thrown around quite a bit, so I feel it is a little bit of an easy thesis. Even though it would be interesting and enlightening to go into more depth about the psychology of the characters in this book, I feel that too many people would have thought of this.
Your second thesis is a little bit more detailed then your second, which would make it easier to write and less commonly written about, yet it is still something that I thought of as one of my theses, or a component of one of them. This idea that Dostoevsky describes of a "superman" is a very interesting idea and it really piqued my interest the first time I read about it. Personally, this thesis is much better than your first, but still a little common.
Personally, I think your third thesis is much more individual than your other theses, mainly because I have not seen anyone comment on it, but I think that it will also be relatively interesting to write about. When I started the book, this idea was in the back of my mind for a while until I forgot about it with the murder happening, but now that I look back on it, it would be interesting to analyze much more in depth about the role that social position plays with Raskolnikov.
Your fourth thesis is actually almost the same exact idea I had for one of my theses, and personally I found that the correlation between the Underground Man, Crime and Punishment, and Dostoevsky to be extremely interesting. Although, I do not think that we should write about this, seeing as it is a relatively common thesis, no matter how interesting it would be to write about it. Also, the fact that there is a lot of evidence and many different facets that you could look at this thesis from any different angles and interpretations.