ShenYu
[11] Champion
Any character that can get on the ground at will is likely at an advantage against Hilde. Bonus points if you can punish a blocked 2K well. SW 44K also mostly negates charge use since she's airborne. So yeah. SW 44K is a ridiculously good move against Hilde. All you need to do is get a life lead and roll around like an idiot. Hilde has no good moves to hit grounded people.
http://www.youtube.com/watch?v=MsmJvPYBKeE
http://www.youtube.com/watch?v=MsmJvPYBKeE