Do you think Mosquito man would be a villain or a hero?

Of course it would be a villian. But since all mosquitoes that suck blood and transfer diseases are female, it's going to be miss villain.

A hero

An I’d be his arch nemesis

“Mosquito spray”

Well, considering that he is a bloodsucker and a potential vector for various serious and deadly viruses, I'd say he'd have a lot stacked against him and a ton of things to prove. But he would definitely make for a very complex character.

Either way, he sucks.

If he was written the right way with the ability to turn other people into mosquito hybrids then, I say he would be a good villain. But not The Joker level of a villain. He's not hero material to be completely honest

it depends . Whose blood tastes better heroes or villains ?

Well male mosquitoes don’t suck blood so hero.

Maybe just a pesky sidekick.

Villian. An annoyong one