As a single man, I know exactly what I want. I'm sure once I become less than single, I'll know exactly what I don't want
AFAIC:
I want a woman that is great to hang out with, someone who I enjoy spending time with at any hour of the day.
I want someone who is interested in the things I do, who does things I'm interested in, who I can share activities with.
I want someone who is both passionate and intelligent, grown both intellectually and emotionally.
I want someone who is easy going but caring, which is what I strive to be as well.
I want someone who can cook, since I don't want to always be the cook (even though I enjoy cooking).
I want someone who enjoys life, loves to laugh, loves to dance, loves to explore and experience the world.
I want someone who has ambition in life, something other than "just raise a family"... although I'd like for that to be in the equation as well.
I want someone who clicks with me in bed, someone who is forthright and outgoing sexually, someone who I'm attracted to physically and vice versa.
I want someone I can be with 50 years from now; to look back and say "yeah, I'd do it all over again the same way hon."
I guess with a list like that, it's no wonder I'm still single.