What is the evidence that Rasulullah (sallallahu alaihi wa sallam) is more beautiful than Yusuf (alaihi salam)?
بسم الله الرحمن الرحيم
It is narrated in a Hadith, the Prophet (صلی اللہ علیہ وسلم) himself said:
أنا ملیح و أخي یوسف صبیح
I am Maleeh (white with redness) and Prophet Yusuf was Sabeeh (white).
One who has a white complexion with slight redness is called beautiful and handsome, while being only white is not considered so charming and beautiful.
Allah knows Best!
Darul Uloom Deoband