This thread is about the interactions/chemistry of each group, not "I hate said character because [insert reason] and other said character was just there so this is the worst!" Name your favorite group from either saga (not SM yet) and provide the good qualities.
Favorite group: The BW Trio
Why? One of the best qualities of the BW Trio is it's one of the few instances where each team member actually had different relationships and chemistry, not sidelined for another character to shine just to have said character deteriorate in the background.
Ash and Iris clearly cared about each other. There was even a whole episode dedicated to highlight their relationship, both missing each other and apologizing over a petty fight they both had earlier. Or with the early episodes where it was just the two of them where they would bicker over something stupid, Iris would run off, but later save Ash in the gusher incident with the Sandile. She never left his side and always supported him, blatantly shown in the battle between Ash and Dento where on one side, Dento had a ton of cheerleaders while on the other, it was just Iris watching intrigued. Just because she doesn't agree with or criticizes his decisions, it doesn't make her a bad friend or wickedly abusive. Ash has been influenced by Iris's wild girl ways like how they would swing vines together in the forest and stand by her with her beliefs. Iris and Dento have exact opposite personalities and beliefs like their nature vs science or paranormal vs logical debates yet they still respect each other. Iris can get annoyed with Ash and Dento's quirks but she still enjoy their company even when they call her on her BS and vice versa. Dento gets Ash to join in his shenanigans and have gave encouraging advice that helped him in any situation he's feeling uncomfortable in. There have been countless times where they've all had fun together (playing tennis, dressing up as fancy girls to knock down 3 snotty girls, go shopping together, star in a movie, solve detective cases, paint together, compete against each other, wear afros to pretend that they're Bouffalant, cosplay, use their natural abilities and work together to get their Pokemon back, etc.)