F6 or F7

Hello,

Im have completed up to f5, last june. And im planning to appear for another paper this june 2013. However, along with working on my bachelors degree
(My grad year) i dont know which paper should i opt for this June.

Would F6 or F7 be easier? I know nothing is easy, but which would be comparatively easier to focus on? I do have a good background in accounting and financial statements , so would F7 be a good choice?

Thank you in advance