Initially I was the same as
Samantilla when it comes to JE music. Even if I do not follow the Korean Ent. industry (i just know of their peeps) their boybands do have better voices,choreography and songs. Probably because their songs sound very American and that's what I'm used to listening to. IDK for sure.
BUT i have grown to appreciate some of the music of the JE boys now cause I love the fandom so much.. It's super fun. It's really nice watching clips of them when they were tweens doing random stuff like boat paddling contests. I also like how the boys have a sense of humor and some speak openly about not getting along with each other/disliking each other. The fandom's scandalous, etc... oops im sorry I got carried away this is "why people love Yamapi" thread not "Why people love je".
So about YAMAPI.

I liked Toma first then found out he had a way famous best friend which was Yamapi. So then I got so curious because I could not see WHY. Then I decided to watch Stand Up and Nobuta at the same time then I slowly saw his appeal and now he is my favorite out of all the other boys! He just has that effect on you which cannot be explained. He also has this mysterious aura that he never gives away too much details of himself in interviews. He seemingly seems different on screen and when he is with his friends. He is an ice prince. He said it himself he is only nice to people he likes.
Yamapi as a whole may be over rated but when it comes to his acting skills he is underrated! He is actually good in acting. Even better when he was younger rather than older though..
He is a hard worker, honest and he knows his limits. He does not claim to be a good singer or dancer! he
even said that his dancing is weird and that he cannot sing his songs like how they sound in the CD. He is not selfish that he did not wish to go solo. He values friendships a lot and his family. He also handled the korea incident like a pro. ~ The people with him were cussing but he kept it cool. Except yeah sometimes they joke he may not be human cause he is expressionless! haha But I also find that amusing about him.
and hello!!! He has nice features and skin (ok so maybe his teeth were kinda bad at one point but I am guessing it was from smoking cause his early jr days they weren't bad). Don't forget the bod! Plus his best friends are Toma and Jin. ahahaha j/k