actually, aries and leo can have problems with competitiveness and dominance, although passion and drive will be on par. if you would prefer a more passive partner, try pisces -- i know many pisces/aries couples and they can complement each other very well. aries loves pisces' affection, attention and fun-loving spirit -- main problems are pisces' sensitivity to aries' tactlessness, as well as pisces' moodiness. otherwise, i'd say scorpio could be a good match -- a water sign, like pisces, but with greater strength and passion, like a fire sign. just watch scorpio's ruthlessness, and be aware that this could be a very intense engagement. if you want something less intense, try an air sign (gemini, libra or aquarius). aries may, however, find an air sign too aloof, although this is least likely with the gentle-natured libra. you may like to read the book "Sextrology" -- as the name suggests, the focus is on the sexual side of a relationship, but there is other information in there. unlike most other books, this book talks about homosexual as well as heterosexual compatibility.