Should I retake GRE? (Ph. D. Mechanical Engineering)

[Gigm]

Hi, I'm planning to apply for top ME Ph. D. programs (such as MIT, Stanford).

I have a GRE score of V157, Q167, AW3.0.. and I know that my AW score sucks.

Do you think I should retake GRE? (I have TOEFL writing score of 27)

Thank you