My honest opinion?
BTS.
I have listened to their full discography and I am thoroughly impressed with them.
I would like to quote a brilliant article. I will link it below and I hope you all will read it with an open mind.
Songs like "Go Go" (a commentary on Korean millennials' monetary carpe diem, a behaviour exhibited when faced with a sense of financial hopelessness) and "Anpanman" (an extremely weak, working class superhero who literally feeds himself to others) both read much darker than their melodies would have you believe. "Dope", appreciated by fans as the ultimate proletarian anthem despite its band-history specificities, summarizes succinctly the spirit -- the hustle and grind -- of the millennial life as we attempt to survive the dual worlds of intensely competitive academic landscapes and a plethora of lethargic or failing economies.
The concept surrounding the new album Map Of The Soul: Persona is very deliberately self-referential; they purposefully revisit old themes in order to achieve healthy closure.
BTS have the quality which I was craving. When I decided to look up kpop, I had a very negative image about it as whole. In the beginning I was a little disappointed as I could not find anything new that I wouldn't be able to find in a western artist but BTS proved me wrong. Their success today is indeed well deserved and their passion has catapulted them to the level they are at today. This is not to say that other groups aren't talented. I am really impressed by the vocals and talents of many but for me BTS is number one.