Actually it is not. Most people don't get my favs correctly because when they see me arguing for or against a character, they immediately assume i'm a fan or hater of the character, like whenever i argue for the Whitebeard pirates for example or against Doflamingo, Crocodile and so on, when in reality i'm pretty neutral about them.
It's just that my mood swing depending on the chapters. If a character impressed me in a chapter, you'd see me wanking him, but after some time, i'd forget. If i also view that a character is getting overwanked, i might focus on putting him in his place. That's how it's from my perspective.
The only ones people accurately know i have as absolute favorites are Ace/Cavendish and who i hate(Akainu). Generally i think i'm pretty neutral for the rest of the characters outside of one i really hate(Akainu). For the rest, it depends on my mood of the week lol