User blog comment:Fang³/Oasis vs Monobook/@comment-6008104-20120610221754

I find that this will probably be divided mostly by how long people have been editing. With a couple exceptions (myself included, I use Oasis because I want to see things how a majority of the users see them), a lot more of the older users hate changes wikia makes and use monobook as a result. The newer users probably tend to use Oasis since it is the default.