Thought I'd take a completely different perspective on this. I'm an astrology-liking type and the four elements have a relationship to the four "faculties". And also to various personality types.
Earth - the senses. Earth is sensible, sensual and practical, but obstinate.
Air - the mind. Air is intelligent, but divorced from the emotional side of life.
Fire - the intuition. Fire is passionate and inspiring, but can't stick at anything for long.
Water - the emotions. Water is sensitive and compassionate, but easily hurt.
I voted Fire!