Pits

People might think Physics is smarter than Chemistry because maths is harder for them and physics based on more mathematics. Being a chemist I think biology is smarter than physics and chemistry because for me biology is harder than mathematics. I really do no understand why people fight between these subject matter. Now at this time there is no any topic or subect area which physics or chemistry or biology claims its own. For example, I am doing crystallography and I major in organic chemistry, learnt how to do cystal anaysis from physicist side. I know how to sythesize it from chemist view and I will know how to get its application from biologist side. Can anyone tell me in which side of study area am I? These issue are worthless unless you can prove it by theory and application.