more fun -> funnier. What was I thinking?
"more fun" is actually correct. "Funnier" means entirely different, that what you are talking about is funny, laugh inducing. While I like "more fun", some people also use "funner", which is coloquial and not yet used widely in official works. But its use in a blog post should be fine. Just google "more fun grammar".. here's one of the links: http://writingexplained.org/is-funner-a-word