What's a band that has one album that is just about perfect in your opinion, but rest of their discography misses the mark with you?
One of mine is Commit This to Memory by Motion City Soundtrack. I basically took the title verbatim and know the album word for word. And while I would love if it did, the rest of MCS's stuff just doesn't hit the same way.
And if you're not an album person, maybe a period of time in the artist's work? Whatever works for you.
*Lots of mentions of hit debut albums that subsequently petered out, which follows with the dreaded sophomore slump that hits many artists. Anyone with mid or even later career albums that stand alone? Those always intrigue me.
Remo Drive - Greatest Hits (which isn't a greatest hits album) definitely fits the description. It's extra sad since it's their debut album, so it falls into your sophomore slump category. I respect the decision to not repeat themselves though, but I can't help to feel like they would be able to make an album that both pleases the fans garnered from the first, and which isn't just a rehash.