What this discussion shows me that there are so many characters with great, undeveloped villain concepts (Wonder Woman) and a swath of characters who need the ranks of their personal villains invested in or even developed in some cases to deepen their bench of foes (Aquaman, Hawkman, Vixen, Black Lightning, Hawkwoman, Zatanna, etc.)
I mean, there's no reason some heroes shouldn't have five to six good villains themselves.