I personally think Manga and Comics are just as equally I don't know which one, what about you guys?
Technically they're the same medium, just a different art style. The same as how tv series are 'cartoons' or 'animated series' depending on the art style/demographic.
Story-wise, you get good stuff and you get bad stuff. With manga though, since it's from Japan, they probably only translate the 'good' stuff so it seems better overall. There's likely a lot of stuff that doesn't make it into English/other languages because it wasn't seen as too popular.