Comic book characters that are probably never getting adapted completely?

Since we're technically in a new age of comics media with the continuing popularity of Invincible and X-Men 97, the continued hype around projects such as Superman and Fantastic Four, and other upcoming works, I wanna take a look at certain characters that are probably never gonna get the love that they deserve in adaptations. Basically any character that is too complicated to comfortably put in an adaptation outside of a cheeky wink and all that.

My choice is Superboy Prime. A normal guy until he receives his Kryptonian powers later in life, Prime is famous for two things: being jealous that he is not actually Superman from his comics and punching reality so hard it broke everything. This is not to mention the years of baggage he now has after Crisis of Infinite Earths. And while there might be certainly be some way to make "a normal person finds out powers and goes mad with them" work, none will ever really reach just how Superboy Prime is on account that he is in my opinion the most comic booky character to ever exist.

But yea any others?