If you don't mind a bit of gay romance try heroes and villains by Harper Kingsley.
It's about an incredibly powerful wannabe superhero, an omega class which is very rare and at the very top of the power spectrum, who unfortunately just doesn't have the right kind of personality and ends up as a joke (he saved a woman from a burning house - and then puked because of the smell...)
A not quite as powerful Superhero starts crushing on him, his first real love - and acts like a lot of boys with a first crush and a few complexes, pulling their beloved's pigtails. Too bad the wannabe had been in love with him since he was a teenager, first rate hero worshipping, only to find his great idol is a dick.
So no adoring masses, fellow superheroes are jerks, day job is boring and the whole superheroing thing just isn't Vereint. So what's an omega class heavy hitter who wants to stretch his powers a bit, doesn't want to work a boring job and looks for a bit of adventure to do? Why, try switching sides of course!
Turns out being a villain is just the right thing for him to do. Comes with fame, screaming and adoring teenagers, a huge Fanbase and loads of fun. Let's not forget all the money and the cool secret base on the moon. Everybody loves Darkstar, even those who get robbed and certain immature superheroes.
It's a great book in my opinion because the characters all have their own quirks and react the way real humans would, not the typical ideal world thing many superhero stories promote. In those books nobody is perfect, the lines are blurred and while there is genuine good, genuine evil and outright stupidity exist as well. Not as good as P.S. Power, but it's still really good.
There is a webnovel by the same author with a completely different setting (postapocalyptic) as well.
