As for Phasma the actor helps and you answered your own question. If you wanted a positive example of a great female character she had potential. I like Hux as a villain to but they wrote them like chumps. Basically you don't end up caring about any of the villains or the protagonists. Even Fett had his moment of glory.
Who's the actor?
What was Fett's moment of glory? "He's no good to me dead?" or when he goes all Three Stooges and gets killed by a blind Han Solo?