Sibling comparison:
http://www.mangago.zone/read-manga/amai_sokubaku/ (incest)
http://www.mangago.zone/read-manga/hoshi_ni_ochiru_efude/
http://www.mangago.zone/read-manga/shijima_no_tsuki/
http://www.mangago.zone/read-manga/hitotsu_shikanai_mono/
http://www.mangago.zone/read-manga/hatsukoi_count_attack/ (not sibling but childhood friends)
http://www.mangago.zone/read-manga/netsuai_naono_bohra/
http://www.mangago.zone/read-manga/yasashiku_oshiete/
http://www.mangago.zone/read-manga/mitasareru_kuchibiru/
http://www.mangago.zone/read-manga/1_2_cigarette/ (brother is courting his big brothers(?) ex)
http://www.mangago.zone/read-manga/sayonara_itoshi_no_my_friend/ (Second volume is about the brother of the uke in volume 1. The volume 2 brother has inferiority complex)
BJ Alex (the seme is being compared with his older brother but the plot doesn't revolve around his inferiority)
welp, im sure you've already read it considering the fact that it's really popular.
thank you girls i'm touched. I've read some of them but i'll read all of them for the rest of the night.
Any yaoi love triangle/rivals between 2 brothers over 1 person(uke)?
AND any yaoi manga(manhwa, manhua or anything else) with seme or uke being compared with his sibling by strangers or their parents? Not incest but their parents/others having favorite like, they're like "why don't you be more like him?" Or "i like his brother more, he's boring"
Welp, something like that. I hope you understand what i'm trying to say since i'm bad with english. I appreciate if you put links. Thanks in advance.