I am doing good in my Ph.D. but I do not like my supervisors. The following are the reasons:
I am forced to work in a very specific area and there is almost no room for creativity. Any related idea which goes against the "vision" of my supervisor is dealt with fierce questions. If I answer them all, then I am told that until someone else with reputation does it, I should not try it as I do not have a proven track record. I am forced to continue on previous PhDs, which I did and have satisfied. But I wish to explore my ideas too.
My supervisor openly claims that he is a great researcher and expects students to worship him. He has lots of grants and publications, but I am amazed as to how little he knows in the field. I can say this because I have interacted with very good and humble professors from top universities and seen the depth in their knowledge. In comparison, my supervisor is chalk, if they are cheese.
My supervisor is cunning. He maneuvers students and gives veiled threats if required. Forces me to publish in conferences which his friends or colleagues organize, even if they are not good.
He forced his Post Doc student as my another supervisor in order to fast track his career, without any kind of discussion with me.
After two years, I have lost interest in my work and the passion has gone. All I do is push myself because I need to graduate. My creativity has no room and I hardly learn anything new. But on paper, I am progressing well because my supervisor had his way with me.
Now I have no interest in further continuing this association. I need to either quit my Ph.D. or look for another supervisor. If I do work with another supervisor at this stage, what could be the challenges? Edit: I resolved my issue. I had a talk with the Dean. He told me about other students facing similar issues and offered me to help. He seems to have had a chat with my supervisor and suddenly I am offered more freedom. Another student had just switched because of the same reason and therefore my current supervisors had to change their attitude as this became a recurring phenomenon. The role of my primary supervisor has been substantially reduced. I have more say in what I wish to do and where I want to publish. And if I still do not like my environment it is possible to switch and school will help.