Bruh I like both of them because of the immense amounts of personality they emit simply by singing and moving, not to mention their designs are really interesting and cool. I honestly can't choose a favorite. I mean, Marina does the smooth singing and Pearl spits fire, what else can I say. ;v;
I typically like to side with the one people don't like, but Marina is just such a good character.
Also, THEY ARE A TEAM WHY ARE YOU SPLITTING THEM UP. It would be like choosing between you or Celo. Whether people like it or not, it is you and Celo, if you are stuck with one, you are stuck with both.