What are some examples of powerful but underused characters who could be on the front lines during a Crisis level event. Somewhat underdeveloped characters who you would love to see a good creative team expand on.
The Infinity Man!
First off his name is THE INFINITY MAN which is one of the coolest monikers around. He has aspects of Shazam as the young gods known as the Forever People must unite to summon him. Plus he can go one on one with Darkseid.
Not one of Kirby's better designs, so I think a revamp would be needed.
The redesign in the 2014 series was ok. Though it lost a lot of the Kirby cosmic weirdness.