The Soundtrack
This is easily one of my favorite parts of the game. All the soundtracks in the game are bangers
The Story
For me, the story is pretty cool! The idea of gym leaders having to hold back from the progression and it being like a sport in Galar rings me as something they should try again! Chairman Rose also had a reasonable reason as to why he was doing what he does for his people (before people say "REGIELEKI", GF didn't think about DLC at the time of making the game, they even said this themselves if you do some research on the topic.
The Gym Battle and the Gimmick
Unlike the other Gym Leaders in previous generations, Galar actually used its gimmick to the fullest potential. Whether DMax or GMax, each gym leader besides Piers (which makes him based) used the region's gimmick to its fullest potential (unlike Z-Moves and Megas lol). This instantly puts the Gym Leaders better than Kalos and the Kahunas.
Debunking Arguments
"Just have a Regieleki"
I already addressed this, read that paragraph
"Charizard Milking"
Okay... and? Is it so bad that Galar does it when every other generation does the exact same thing? Also, why does Charizard get the hate but Eevee and Pikachu don't? (I already know the answer, cuteness, but still, the point stands)
"The main villain was predictable"
Better than an out-of-nowhere villain
"Introduced Dexit"
I always hate this argument because LGPE and SwSh have different art styles, and you can't expect GF in 1 year to put them on all art styles they decide to try across every game. This isn't the 3DS or DS, they actually have room to experiment with styles, and this makes it impossible to include everyone