Anyway Kelly is better She is more versatile and has more range, and I personally think her natural tone is underrated. Love Adele's voice too though <3
I love both of them to death. Their powerful vocals and their delivery in singing ALWAYS makes me feel connected. They are the Mariah, Celine and Whitney of our generation in terms of vocal talent.
Kelly has proven over the years that she can sing anything in all genres while Adele has yet to prove that she's not only good in singing ballad songs.
Kelly's vibrato is more noticeable than Adele's. Therefore, my vote goes for Kelly Clarkson.