I was too lazy to see what other ppl said, so sorry if I'm repeating anything... but I think you should have plenty of categories for people and quizzes, and not just stories. So like, most active user, funniest user, coolest user, best quizzes, worst quizzes, longest quizzes, randomest quizzes..... etc! :)
Everyone said this but go 1st comment GOOD THINKING so my answer would be to do that
*pics not picks :/
For the picksyou could seperate it into sections,
Best Illustration etc.
i'll have to agree with Nessie and Cookie Chan! :)
I agree with Nessie :) ALL OF THE ABOVE!!!!! :)
All of the above
I agree with the first comment
You could also do...best themed profile, most dedicated author(s) (like who is best with updating stories and getting back to comments about it) or most dedicated reader (someone that always tries to take an interest in everyone's story).
Agreein with mai_girl_4ever or best nickname too