(assuming you think B-sides are usually reserved for not-quite-so-good (as the single/the rest of the album, at least) material)
most of The Masterplan, to be honest. This is my favourite, though, and 'Half the World Away', 'The Masterplan' and 'Talk Tonight' should have been at least album tracks.
one of their best songs, let alone B-sides.
likewise.
the intro