Someone who honors and magnifies their priesthood calling. You'd be able to gage a man's dedication to the Lord by how he preforms his priesthood duties. D&C 4:2; "Therefore, O ye that embark in the service of God, see that ye serve him with all your heart, might, mind and strength, that ye may stand blameless before God at the last day."
Someone wise and elect - D&C 29:7; "...for mine elect hear my voice and harden not their hearts"
respectful, honest, and self motivated - D&C 58:26; For behold, it is not meet that I should command in all things; for he that is compelled in all things, the same is a slothful and not a wise servant; wherefore he recieveth no reward. Verily I say, men should be anxiously engaged in a good cause, and do many things of their own free will, and bring to pass much righteousness."
Now with those things you get the domino effect of all the other qualities that most women want.
(I'm starting to sound like I'm teaching sunday school - sorry.)
Now if you can think of any other things to add, please post!