I performed my research in Philippine Blogs and I found out that websites that deals with video streaming, showbiz and celebrities, Technology and Gadgets, Naruto (Anime), love quotes and Pinoy jokes are among of the most visited websites. Of course, there are so many Food and Travel blogs that receive thousands of visitors.
Anyway, its hard to write on a topic that you are not interested in. You'll ran of topic and ideas soon.
My advice is to follow your passion.