I really like the characterizations they gave a lot of these pokémon. I was really surprised by Chandelure's personality. I was not expecting that at all! But I love it! Also Gengar is pretty hilarious in everything he does, kinda like Wario in smash! I absolutely love what they did with Pikachu Libre! I expected regular Pikachu to be the cute one and Pikachu Libre to be the intimidating, serious one. I could not have been more wrong! Normal Pika is scary! and Pikachu Libre is the most adorable thing! Braixen is pretty funny too, and in battles between Pika Libre and Braixen, it looks like they are just doing a show for the spectators to watch. They don't care as much about winning as they care about looking stylish while they do it!
Lucario though, seems to have two very different personalities throughout the games and movies. In the Lucario movie and in smash, there is the talking lucario that seems very intelligent, honorable, and calm, whereas Lucario in the anime and in pokkén seems like a savage beast that goes on a complete frenzy whenever he is called into battle, basically the foil of talking Lucario.