Pretty much just gonna rank based on designs I like/dislike.
1) Hoenn
Good: Roxanne, Wattson, Flannery, Tate & Liza,
Don't care either way/meh: Brawly, Norman, Winona
Bad: Wallace, Juan
Like: 44.4%
Meh: 33.4%
Dislike: 22.2%
2) Galar
Good: Milo, Nessa, Bea, Melony,
Don't care either way/meh: Allister, Opal, Gordie, Piers
Bad: Kabu, Raihan
Like: 40%
Meh: 40%
Dislike: 20%
3) Sinnoh. Same like % s Kalos, but Sinnoh has a higher 'meh' % and a lower dislike %, so I broke the tie based on that.
Good: Roark, Gardenia, Fantina
Don't care either way/meh: Maylene, Byron, Candice, Volkner
Bad: Crasher Wake
Like: 37.5%
Meh: 50%
Dislike: 12.5%
4) Kalos
Good: Viola, Valerie, Olympia
Don't care either way/meh: Grant, Korrina, Wulfric
Bad: Ramos, Clemont
Like: 37.5%
Meh: 37.5%
Dislike: 25%
5) Alola
Good: Lana, Mallow, Acerola, Olivia
Don't care either way/meh: Ilima, Mina, Hala, Nanu, Hapu
Bad: Kiawe, Sophocles
Like: 36.36%
Meh: 45.46%
Dislike: 18.18%
6) Kanto:
Good: Erika, Sabrina, Giovanni
Don't care either way/meh: Brock, Misty, Lt. Surge, Blue
Bad: Koga, Janine, Blaine
Like: 30%
Meh: 40%
Dislike: 30%
7) Paldea
Good: Katy, Tulip
Don't care either way/meh: Larry, Ryme, Grusha
Bad: Brassius, Iono, Kofu
Like: 25%
Meh: 37.5%
Dislike: 37.5%
8) Unova
Good: Elesa, Roxie
Don't care either way/meh: Cilan, Chili, Cress, Lenora, Skyla, Brycen, Iris, Cheren,
Bad: Burgh, Clay, Drayden, Marlon
Like: 14.29%
Meh: 57.14%
Dislike: 28.57%
9) Johto
Good: Jasmine
Don't care either way/meh: Falkner, Bugsy, Whitney, Morty, Pryce, Clair
Bad: Chuck
Like: 12.5%
Meh: 75%
Dislike: 12.5%