>>57459063>Gen 1Red, Blue, Brock, Misty, Sabrina, Lance, Giovanni, Professor Oak
>Gen 2Silver, Whitney (mainly for the Miltank), maybe Jasmine.
>Gen 3Steven, May, Wally, Norman (mostly just because he's the MC's dad), Anabel, Brandon (not really but he was well liked due to his anime role), Wallace (not nearly as popular as Steven but he's got his fans)
>Gen 4Professor Rowan, Dawn, Barry, Cynthia, Flint, Volkner, Looker, Cyrus, Caitlin (more popularised in Gen 5 as an E4 but debuted in Gen 4)
>Gen 5Bianca, Iris, Alder, Shauntal, Skyla, Elesa, Ghetsis, N, Grimsley? (I think he has a fanbase?), Hilda, Rosa, Colress, Ingo, Emmet
>Gen 6Serena, Shauna, Sycamore, Korrina, Lysandre, Clemont, Bonnie, Hex Maniac, maybe Malva? Then you have the gen 6 remake characters like Courtney and Zinnia
>Gen 7Lillie, Mallow, Lana, Elio (SM-only), Selene, Guzma, Professor Kukui, Kiawe seems to have a decent fandom, Acerola, Nanu, Lusamine, Gladion, Faba, Wicke
>Gen 8 Gloria, Leon, Marnie, Nessa, Bea, Allister, Gordie, Melony, Piers, Raihan, Mustard, Klara, Sonia. Then from Legends you have Akari, Cyllene, Adaman, Aresu, Mai, Irida, Volo, Cogita to an extent.
>Gen 9Juliana, Florian, MC's mom, Arven, Clavell, Nemona, Iono, Larry, Penny, Sada and Turo, Rika, Poppy, Carmine, Kieran, Perrin, Lacey, Drayton
#1 - Gen 8 (21 points)
#2 - Gen 9 (18 points)
#3 - Tie between Gens 5 and 7 (14 points)
#4 - Gen 6 (11 points)
#5 - Gen 4 (9 points)
#6 - Gen 1 (8 points)
#7 - Gen 3 (7 points)
#8 - Gen 2 (3 points)
So objectively speaking Gen 6 has the fourth highest number of popular characters.