Best: Jean Grey
Jean Grey goes by several other names in the comics and movies she appears in, including: Marvel Girl, Phoenix and Dark Phoenix. She is another mutant member of the X-Men. Her powers are telekinesis and telepathy— similar to Professor X. After a space mission she came in contact with a powerful substance and became the villain Dark Phoenix. Still her powers are one of the strongest of the X-Men and under any of her aliases she kicks butt.