The one that made its finest impression on you was the Philosophy because it brought to mind various theories of reality and existence which helped you form your own unique version. While your version will always incorporate many of the thoughts which you really felt in your core, it will always be different in its own unique way because no one can tell you exactly what to believe.
Yet, the logic and art, music and science all have their own way of expressing that philosophy in the things that you create and seeing it in that which others have delved to produce. There is no one favorite subject because everything is synergistically connected. Besides, why say "everything I did"? Is it as if you are done already?