What I love about my husband (among many other things) is his ability to engage with me intellectually and physically, coupled with his ability to function completely on his own. He is not an attention whore or insecure in any way that affects me. Emotional stability, sense of humor, willingness to wrestle with me on a weekend afternoon, a real commitment to equality in the relationship (we split all our chores down the middle... and YES, picking up after yourself like an adult is a *very* important skill for both genders to develop), and a lack of need to act macho, manly, muscly, arrogant, all-knowing, and/or the world's funniest/flirtiest/strongest man are essential to my respect for and interest in my husband.
Did I also mention that he has the most beautiful eyes in the world?
And he never withholds physical affection. Ever. I always know that I am loved.