The way I see things, an episode has to have some level of interest for me. The battle Ash had against Valerie wasn't anything particularly special. Yes, he won himself a badge, but I just didn't find it as exciting or intense as some of the ones he's had in the past. The aforementioned moments didn't really help either. The same goes for the filler episodes. If they do something interesting, then I will like it. Taking an example off the top of my head. Ash and Pikachu get separated for a few episodes and the issue of trust comes into play. That would be interesting considering how long they've been together. A filler that involves TR separating the group only for them to unite by the end of the episode is one I would find boring since it's been done many times before. I know that episodes are bound to end up similar sooner or later, but this was just my opinion. I know I don't talk a lot like this when I give my thoughts on each episode. I just suddenly had a lot to say so I hope I don't come off sounding like a jerk.