User blog comment:IamJakuhoRaikoben/Sorcerer Magazine, Issue 42: June 2015/@comment-26559953-20150713183319

Juvia! I think Juvia would win in a serious match. Juvia is skilled at water magic, and it would be pretty close. But Juvia still wins, she held her own against Gray in Phantom Lord. Water body probably wouldn't work on Cana, but when Juvia is serious, she serious.