>>44486172I'd say its probably:
Zinnia: 9 or 10
Mina 8 or 9
Maylene 8
Korrina 7 or 8
Bea 7
Acerola 7
Gloria 6 to 10
Roxie 6 to 8
Courtney 6 to 7
Hapu 5 to 7
Hilda 4 to 6
Bea, Maylene and Korrina have intense workouts along with wearing tight clothing. Maylene would likely be the smelliest of that group because she wears sweatpants on top of her spats. Korrina does a lot of cardio and is fairly smelly but smells the nicest of all the girls listed below when she isn't working out.
Zinnia wears two uniforms on top of each other while also living in a tropical region. Is also canonically stinky.
Gloria eats curry all day, there's no way she'd be able to stop the after effects it would have on her body, especially if those flavors were particularly spicy, easily the most volatile smelling panties.
Courtney lives in a tropical region on top of the Magma base being in/near a volcano (in Emerald.) There's no way her panties wouldn't be completely drenched in her sweat.
Acerola's a victim of circumstance of being an orphan who probably doesn't own a lot of different clothes considering her normal attire is a raggedy patchwork dress. Likely wears the same panties over and over again. Also lives in a tropical region too.
Mina's incredibly nonchalant and probably doesn't care enough to regularly change her panties on top of that she lives in a tropical region too. Likely similar to Roxie but more natural smelling.
Hapu's basically a hard working farmgirl. Her panties probably smell fairly bad while she's out in the field considering her "heavy duty" attire and the tropical region as mentioned earlier.
Hilda I think is a jack of trades of all of the above girls, somewhat wild, somewhat adventurous, somewhat tomboyish, hard working.
Roxie's has that grunge aesthetic about her, probably the least natural smelling panties, may be somewhat similar to Mina.
Dropped Acerola and Hapu a bit because they're obviously little kids compared to the others