[quote=@Majoras End]

 Can't really say much with the story since I haven't watched it through. But...yeah, they could've made a better team than Team Yell, or atleast made them more interesting, or give them a better name. :/ (and im not just saying that since I favor Team Aqua more.)

 The concept for the rival is good, being related to the champion, but Hop seems a bit annoying over time.


[/quote]

Team Yell makes sense in context - they're not really evil they're just hooligans/megafans of one of your rivals. The antagonist thing in this game is the worst part of the already thin story because it quite literally comes out of nowhere and is introduced/wrapped up in about twenty minutes. 

BUT on the topic of rivals - that's one aspect of the narrative that I would say is done well. Or well enough for a Pokemon game. Hop is annoying, yes, but he and your other two rivals have their own arcs to go through and they mostly work. Hop has to learn to stop living in the shadow of his brother, Bede has his thing, Marnie has hers, and while Hop never quite escapes the 'annoying friendly rival' thing that has been a staple of Pokemon far longer than this weird 'mean asshole rival' that people are nostalgic for he DOES at least grow beyond 'MY BROTHER IS THE BEST SO I'M ALSO AWESOME BECAUSE MY BROTHERRRRRRR'. 

In short: the main narrative is weak but the side narrative with the three rivals is good.