Hummingbird was easy for me, she's got too squiffily defined powers, and that bugs me. (Plus she's associated with Huitzilopochtli, the 'left-handed hummingbird' and god of war, which is cool AF, and she's an empath that sometimes shoots fire at demons? What the hell is that all about?) Plus she's kind of a package deal with Kaine, who is kind of the Spider-Curmudgeon, and I can also do without.
But Sun Girl, oh my, if she got a tenth the push that Moon Girl or Riri got, just look out! She had the sassy black girl genius thing going on before it was popular, *and* the hyper-competent-daughter-of-a-two-bit-Spider-Man-villain thing that the new Beetle has going for her. She had me at hello!