Hmm, I believe I am a mix of Air and Water (probably mostly water).
Air
Air seems to be the element of Balance and freedom. For me, I am obviously a pilot and understand the winds, and air through my training, and natural skills. Air is the element of serenity, and it is a factor I reach for in life. Like air, I find the peaceful solution and serenity in situations. (And I can fly through it legally with my licence!)
Water
Water seems to be the element of healing, peace, emotion, and spirit. I think out of all four, that I bond strongest with Water (I know, kind of surprising for a pilot and a non-swimmer), but like water, I live a life of emotional experience, and seek the love and friendship of others. I am a healer of others, and sort of a "cleanser" of problems.