أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
It depands on your speciality and what kind of writings do you have.
I really don`t know that. I not participate in writing contests. But, maybe I should :)
it's according to your speciality and intrest , there are no best , there is what suits you the best
It actually depends on your interest. If your inclination is towards science fiction, then you would do better in contests in this genre. Or if you prefer children's story books, you might find contests in this genre more interesting.
