It may be a bit of an obvious choice, sure, but the title track still gets me every time and serves as a great introduction for the album.
I'd go to say at least that The Suburbs (the album) has the highest highs in their discography, while Funeral is slightly more consistent IMO.
In answer to the thread topic, I'll throw Animals as Leaders in there. I know they're pretty liked in general by the prog fans on this forum, but the only album of theirs that I really like would have to be The Joy of Motion. The self-titled and Weightless, on the other hand, do next to nothing for me, aside from a track or two.