I've actually never heard any Ultravox; I've heard some Japan but never got into them. Definitely Adolescent Sex but it's been a long time. I bought too many albums at once too many times as a teenager and often ended up never getting to, or neglecting, a lot of them. (Nowadays I listen to HAULs in alphabetical order to prevent this.)
Billdude hates Music for the Masses. I dig Depeche Mode's '90s stuff as well but yeah, after Violator they weren't the same. Ultra was their last really good album IMO, although the first ten seconds of Playing the Angel are great.
I don't listen to much rock nowadays TBH -- mostly just discography runs.