Who Sung It Better: "Diamonds"

Soooooooo....It was already said that Christina Milian had a song with Kanye West on her new album, which was called "Diamonds" and she was really excited about it. Then out of nowhere, a version pops up with Teairra Mari's vocals on it.

Well the Xtina Milian version dropped as well...and like Beyonce said in "Kitty Kat" I'm not feelin it boo boo. I couldn't even listen to the whole thing!! I totally think that Teairra did it much better. It's just something missing from Xtina's. I think her voice is too soft, which is weird because it's a soft song....but idk..It's dull. Mari rocked it better, and hopefully the song goes to her. What do you think?