>>28562052Iris had character, Serena doesn't. She's just waifu-bait to /co/ and a fill-in-the-blanks relatable girl character to the writers.
Also, the filler episodes are the only enjoyable thing on the show you numnut, that's why I said it was better. If you enjoy watching the show for the plot, that means you just want to watch Ash win one gym battle, then another, oh and win another gym battle, because you have the emotional maturity of an eight-year-old and want to watch Ash win a lot of times, but maybe lose a bit more at the beginning for "progression" because that's good writing.