Writing an essay

So I have to write an essay for College English. It has to be a compare and contrast, but I have no idea what to write about. She's letting us pick as long as we don't write about Mac vs PC or XBOX vs Playstation. She says that when she has 20 students in her class, 9 write about mac vs pc and 9 write about xbox vs PS. The other 2 actually have good papers. I've been thinking about it today but I still don't know lol. I wanted to do WoW vs Maple but I already know she wouldn't care enough/know enough about that to give me a good grade lol.

Any suggestions? something vs something?