5 main aspects I base my ratings on:
1. Did DramaEnthusiast make a thread about it?
2. Is it better than Breaking Bad?
3. Did MellowJello recommend the shit out of it?
4. Has it caused a (very entertaining) shitstorm on MAL?
5. Is it actually good?
Scratch the fifth point, it's not very relevant...
Saitama is best
genos and licesless riders in 2nd
King comes in 3rd(manga reader & webcomic reader here)
Fubooty(fubuki) comes in 4th(it isn't just her hotness why i ranked her on my top 5)
metal bat comes in 5th( he's a badass)