1Serena
2Pokemon with minor appearances
5Johnny Test-Styled Character Derailment
7Rips off Diamond and Pearl
9Fanservice
12The Pokemon characters had little to no personality
15The Kalos League was rushed
16Too many filler episodes
17Team Rocket losing their charm despite being one of the few good characters left on the show
18You want to root for antagonists and hope they defeat Ash Ketchum
20Too much focus on Ash-Greninja and less on other pokemons
21Nonexistent romance
22Ash never got reunited with of one his old Pokemon or travelling companions
24Bonnie
27Clothes Fly in the Air (Xy Ep 30)