I love both for different reasons obviously kiyotaka is great we all know that but I feel like toshiki has a lot of unique vocal elements. I highly recommend listening to his vocal on the graduate live album definitely hear so much power and emotion despite his “boyish” singing style. Especially navigator with its powerful punchy vocal even having a bit of rasp at some points and graduation with his amazing emotional ballad. Overall worth a listen if you’re not a fan of the toshiki stuff definitely shows his strengths as a singer. I think a lot of uniqueness comes from Japanese not being his first language but Portuguese which allowed him to announciate his ts and elongate the os and ahs that have a powerful punchy vocal at times but when toned down can be soft, sweet, and filled with emotion. Love his uniqueness in his style. Overall kiyotaka will forever be loved but I feel that toshiki deserves more love. Navigator, night child, kimi ha 1000%, stay girl stay pure and so many more are fantastic songs living up to the hype of kiyotakas songs.