Men want lots of things from men but not sex
What do men want in a relationship with women could be a highly sexist question to ask. If you insist on putting it that way why not ask what do women want in a relationship with men? I bet there are lots of things, variables, if you like.
After all and why not, since women should be just as demanding and looking for different things to satisfy them and their needs.
Just to be more politically correct and less biased, why not ask what do both sexes want in a relationship from each other? Is it just sex appeal and/or a lot more than that.
Obviously the question is not only about sex though this enters into it and how, its about the partners. They decide 'how' much of the sex drive is put into the relationship, how much that forms their lives. Its is not a mainstream view, but in some cases, it is based purely on that special budd we can call sex.
But it's a lot more related to the relationship with each other, couples are strange, and probably unique, there is a special body language only they can appreciate translated in so many human aspects that builds a common bond characterized in feelings, and the kind of things one likes about the other.
These are a set of commonalities and features that exist between them, making them belonging to a sort of crypt.
If we go back to the original question of what do men want in a relationship with women we may see that a male may want exactly the same thing as what the female wants. There are a set of factors that actually apply to both men and women regardless of their gender, after all they crave for the same things.
Attraction for one thing is a dominant factor, and its highly personal and subjective one. Its quaint and individualistic. What two people feel for each other is almost unique and doesn't recur, or recur in different ways with other couples.
If a man finds one woman attractive, it doesn't mean to say he will find other women just as attractive regardless of the looks. He may or may not, but beauty is in the eyes of the beholder, which is very true. One woman might be very attractive for one man, and not for another and even a put off, if that is the right expression. Beauty here becomes, if I can use the expression a mixed bag of goodies to be indulged into.
Similarly a woman might find one man a "hunk" and another an "ok" guy. It just depends, its personal, private, subjective, even related to ones cells, feelings, outlook, perception.
Of course there are common denominators for attraction: Good looks, voice, speech, the way one says things, attractive wear, sense of smell and so on. But all these have variables and degrees of subjectivities.
What I find attractive in tone maybe a put off by another, after all we are human and different.