Outside of Blue and Dawn, my favorites go in no particular order unless described. XD
1. Pokemon Adventures Blue
(This girl is in the upper echelon of "badass". A contriversial, Shape-shifting con artist who feared birds and essentially was an anti hero for most of her appearances, plus her roots as a planned member of the original RGBY games? Yes. Easily the greatest female character in this entire franchise, to my eyes anyway.)
2. Dawn (mix of adorable pokemon, adorable personality and constant costume changes make her cuter than any damn Pikachu. Devoted many a senseless fanfic to her five plus years ago.)
3. Flannery (Cosmetic choice, easily one of Hoenn's better designed ladies)
4. XY Serena (See Flannery, except multiply the reason by five. Dislike her younger Anime version greatly, however)
5. 2013 Brigette (A total and complete bombshell. Her redesign was a redesign done RIGHT...shame she's restricted to PokeBank and a single stationary image to communicate.)
I feel like GF purposely make the girl characters look better than the boys
Well, that was proven true in the Anime by the creators themselves actually. The reason Misty was dropped was because they wanted fans to have more/other girls to look at. This is paraphrased off memory, so don't quote me on that.
But yeah, in the case of Serena vs. Calem, fan service had to have played a huge role--and one was *clearly * designed with much more care than the other. It's almost hilarious how wide the cosmetic gap is between those two.
FC: 2964-8693-8509 IGN: Verylin Fairy Pokemon are second only to Goomy.