Josy's popularity is generally a big mystery to me on the level of the JFK assassination mystery.
I like her, but not enough to put her on a level above Maya. All the complaints about Maya are that she's stupid. Well, people forget that Maya's been under her father's tyranny for a long time and she just lacks social skills. There are a lot of assumptions in the game, starting with the fact that we have questionable reasons for Maya to become a lesbian, but all these assumptions and inconsistent behavior makes Maya a deeper character than Josy.