Most Helpful Guy
Not to me. I may lack the formal advanced education, but I'm pretty smart and I self-educate constantly. I find intelligence attractive and interesting, not intimidating. I could learn things from a girl like that, and I like to learn.
Most Helpful Girl
That is a silly question. :) Be proud of your PhD. Every man wants a woman he can be proud of. Any guy who would be intimidated by you or try to limit you in any way is not worth your time; don't sell yourself short. The right guy will adore you, your career, your intellect, ALL OF YOU. He will love you to pieces just as you are. Good luck!