>>1336205
Hard to say since in every season I saw you have some toptier episodes and others who are utter dogshit and I wished I hadn't wasted my time with it.
Generally speaking most of Kanto and Jotho is quite good, Orange Isles start nice but can be largley skiped.
Afterwards the quality really starts to swing widly around between actual Pokemon episodes and seemingly filler shit with nothing important happening.
Also
>8+9+10 have a story that goes more or less trough all three
I brainfarted here, it was 10-12 with the story that was connected together. The ones before are largley stand-alones.