It's posts like this that always make me sad about these discussions, where people on both sides of the argument like to reduce each massive medium into small genres. Western comics aren't uniquely about superheroes just as Manga aren't uniquely about Shonen/Moe.
The criticism that all comics have 10 different timelines for each group is only really a problem in the cape and cowl genre and those aren't the only western comics in existence, you could read comics for years without touching a cape. As for the comment about a middling mangaka being better than the best western writer it comes across as mere fanboyism and is worthy only of a raised eyebrow.
The reason I don't read manga over western comics is simply down to lack of exposure on my part. I know which comics I will love or at least will find interesting as I know where to go to get information about upcoming books or recommended books. With manga I don't and these leads to me guessing, sometimes I guess correctly ie Berzerk, Uzumaki, Akira, Biomega, Blame!, Ghost in the Shell and sometimes I don't.
I would probably enjoy manga more if I knew what was there and how to get at the stuff that sounded interesting to me, but all the manga boards I see tend to recommend books that I have no interest in, and since I have no idea of what to choose I tend to get stuck on the most popular stuff which tends to be either shonen/moe or awfully translated.
What I would love is if there was a website somewhere that let you choose the comics you loved and then based on those provide you with some decent manga to get started with.
As for the comment about a middling mangaka being better than the best western writer it comes across as mere fanboyism and is worthy only of a raised eyebrow.
And vice versa really, I guess I'll have to make do with asking people who know their stuffs irl...
As an aside I feel like animated adaptation for mangas tend to be....less shitty than their US comics counterparts that tend to be low budget kid stuffs to sell toys :/
I hope to god I'm wrong there...