I can think of two subjects that I have always liked in college. The first one is General Psychology because I have always loved learning generally about the theories that are still being used in Psychology. This is where I have learned that different psychologists may treat their patients with different methods depending on the assumption that they believe in.
Another subject that I like a lot is Philosophy. I like the fact that it encourages me to think. This is also the subject that taught me how to look for subliminal messages in commercials and so much more. Some of the subjects are truly fun to learn.