It's hard to say, but probably Niall.
The most famous member of One Direction is Harry Styles.
Being "handsome" is an opinion. However, according to SOME fans, "Liam Payne is the most handsome member in One Direction Zayn Malik is the second handsome member in One Direction Harry Styles is the third handsome member in One Direction Niall Horan is the fourth handsome member in One Direction and Louis Tomlinson is the fifth handsome member in One Direction"
One may and can not pick the most handsome member of One Direction
No
Harry Styles
All of them, except Liam
The most famous member of One Direction is Harry Styles.
Being "handsome" is an opinion. However, according to SOME fans, "Liam Payne is the most handsome member in One Direction Zayn Malik is the second handsome member in One Direction Harry Styles is the third handsome member in One Direction Niall Horan is the fourth handsome member in One Direction and Louis Tomlinson is the fifth handsome member in One Direction"
One may and can not pick the most handsome member of One Direction
Harry Styles
LIam Payne
No
Harry Styles
Most likely Niall.
All of them.
Zayn Malik
It depends on peoples opinion. It's different for everyone.