so my friend says that touhou characters are all relative. There's no real antagonists or bad guys. They're all just kind of against each other.

Not yet.

I'm twice on your list :(

Through 200 posts, liking mario the least(good chance I'm biased by our interaction), with Trucks and MDJ not too far behind.

oops, oh well. lemme fix it:

zero - ?
trucks - flandre
radish - youmu
Linkz - marisa
mario - Kogasa
Prof - satori
ff - ?
DT - ?
Noc - ?
yoshiya - yuyuko
mdj - ?

I'd like the missing people to report their character names.

Why was it arranged as it was in the original list? (And I don't mean just that radish was included twice or that zero, mdj, and noc were missing)

I just looked through when I asked the question and who answered, in order, and then found a couple more. No real rhyme or reason really.
This one was done by op list order

Unvote

thank you mdj.

Marisa is a pretty main character though. She's arguably the second most popular in the series behind reimu. It's a bit surprising that she wouldn't be given a role.