Best for the New 52:
Equinox (simple, but effective)
Flash
Worst for New 52:
Raven
Starfire (but I never liked her costume for any form outside of the animated show)
Though this one still gets to me. It's not New 52, but it's still the gaudiest looking costume I have ever seen.
Opinions may vary in quality.
My big article on Mariko Tamaki's Hulk & She-Hulk runs, discussing the good, bad, and its creation.
My second big article on She-Hulk, discussing Jason Aaron's focus on her in Avengers #20.