Will be my teacher fail me for writing an essay on this?

I have to write an essay on Buddhism and I'm allowed to choose my own topic. I was going to compare Buddhism to Islam but I'm a bit stuck on what to write. After doing some research, I've found that there is a vast number people who claim that buddha was a prophet of god. I'm interested in pursuing this matter, however my teacher is a Buddhist (but he's really high and mighty - yeah a contradiction in itself, i know) and am worried that he is going to be offended. I know he's an academic and all that, but this is personal for him and he may not receive it well. Am I wrong to think this?