WW is eaisly class 100, as she's gone toe to toe with Superman dozens of times. With that and her speed, she takes this quite handely.
Also, I'd like to point out that overpowering Magneto like that is due to one of more of these reasons
1. Bad Writeing
2. Magneto being INSANELY overconfident
3. Magneto being infinitely weaker then his 616 counterpart
4. Ult Colossus being the new pre-crisis Superman.
Siriously, Magneto has carryed thousends of pounds for days with no strain. It makes no sence that he could be overpowered like that.