[2] As with every original recording by the Smiths, the music of "Some Girls Are Bigger Than Others" was composed by Johnny Marr and the lyrics were written by Morrissey.

[5] Andy Strickland in Record Mirror said, "Morrissey and Marr still can't quite get it together all the time, 'Never Had No One Ever' and 'Some Girls Are Bigger Than Others' bearing all the hallmarks of the familiar Smiths filler, where music and words hardly embrace,"[5] while Nick Kent wrote, "'Vicar in a Tutu' and 'Some Girls Are Bigger Than Others', sensibly restrained arrangement-wise, may well be lesser songs but, constructed within their rightful limitations, sound absolutely stunning".

[5] In Simon Goddard's book of track-by-track explications Songs That Saved Your Life, Johnny Marr describes the song as "a beautiful piece of music", while the author writes, "Possessing one of his most alluring guitar melodies [...] if Marr's tune was heaven-sent, then it seemed very nearly blasphemous of Morrissey to christen it 'Some Girls Are Bigger Than Others' and bestow it with its notoriously frivolous lyric".

[1] "Some Girls Are Bigger Than Others" was performed live only once: at the final concert by the Smiths, at Brixton Academy, London, on 12 December 1986.

[6] In Germany, "Some Girls Are Bigger Than Others" was released as a single in slightly edited form, on 7" and 12" vinyl, with artwork modified from the cover used for "Ask".