Waltzes, Mazurkas, Rondos, Bolero, and Allegro de Concert. I concede that these--particularly the last three--are not exactly his *greatest* works but they certainly deserve a lot more attention than they receive. There are three or four popular waltzes and mazurkas, but I find them all very enjoyable, and the rondos are just cool! The Allegro de Concert interests me because it has some good melodies and would make a great, somewhat obscure showpiece with historical significance (well, inasmuch as Chopin composed it as a sketch for a concerto movement, but scrapped the project), and the Bolero...same as the rondos.
But, really, I find that most of this stuff really does get plenty of attention, being by Chopin and all. I've always considered the Barcarolle to be one of the more often played ones! But, it's very possible that my assumption is incorrect.
One should either be a work of art, or wear a work of art.
You know, some people just have natural talents-like some people play the piano but aren't very tall.