Flo was just annoying, whiney, and a quiter but Ali was awful. She would call Nathan gay because he wouldn't flirt (or want to make out) with her (even though she was going out with Donny). She was constantly making fun of and making snide comments about the other HG.She and Jun were jealous when America kept picking Robert to win America's Choice when it had interactions with his daughter Elena. Some of the other HG were happy that America got the pick right (like Jack for example). Jun and Ali were so jealous that they called this 10 year old girl a b*tch (which is truely despicable in my books because being name-called by peers is tough enough but when an adult name-calls it is that much worse - the kind of situation where social services would remove a child if the adult was the parent due to verbal abuse).
I would rather see more Flo than Ali.
Three is the perfect number.