A lot of correct observations. Still, when you go by their personalities, the probably best outcome would be a win by Felicia! Feli is actually one of the nicest characters in the cast, winning would give her the own money/influence to save her school, which is the main reason she is at PC in the first place. Felicia also gives, if you choose so, Rosi the money to calm the loan sharks, despite they are competitors. If Feli wins and has halfway good relations with Rosi, I am sure a goodsih Edwin could convince Felicia to give her enough money to get the loan sharks off Rosi´s back. (Rosi might still be "moonlighting" at PC in the future even on a good Edwin run, but that would be Rosi-specific choices)
Maybe Felicia would give Veronika some money to save her gym, but only maybe. Not only is the amount of money needed a lot higher than that for Rosi, Samson has to brought to let his obsession with Veronika go, but the main problem here is that Veronika and Felicia dislike the other. Felicia is a proven nice person, but like with everybody, there are borders how far you go.