This free collection from the Digital Comic Museum provides a good introduction to Basil Wolverton's only real "Superhero" work Spacehawk.
Really, in terms of Golden Age Sci Fi Superheroes, Spacehawk is top notch. He's powerful and mysterious. His dialogue is very well-done for the era, and the villains are interesting, and his aliens are well-drawn and stand out from so many Golden Age comics which used predictable designs.
The book does lose steam towards the end. Spacehawk was being published by a small publishing house who decided every hero had to get involved in the War including the guy from space who defeated foes that were more dangerous than the Nazis frequently. Later on, entertainment companies would realize that people craved distraction from the War and would stop putting every comic character on war footing all the time. Sadly, this realization wouldn't come soon enough for Spacehawk.
However, the first part of the book is intriguing and a must-read for Sci Fi comic fans.