My unpopular opinion re: these guys is that I find Disintegration to be overrated in that it's considered by many to be the band's best. I appreciate the atmosphere, but it's a bit of a slog and isn't really notable in terms of songwriting. Also, I always hated Love Song.
For me Kiss Me x3 impresses the most with its diversity and convinced me they could do anything, though there is def some filler. Head on the Door is probably the most consistent for me. And I also think Wish is terribly, terribly underrated. Such a great album with a healthy mix of songcraft and some really notable instrumental passages. It's ridiculous that the album is labelled as happy or poppy just because of a few upbeat tracks (Friday I'm In Love, Doing the Unstuck and High, all of which are fantastic), when overall it's just as moody and depressing as anything else.