Actually, it's been proved before that your sun sign is not even relavent in elemental magick, but rather your personality.
People best suited for water are usually quite dramatic, and at times overly emotional.
People best suited for fire are enthusiastic, and courageous.
People best suited for air are logical thinkers, and overall are quite intellectual beings.
And last but not least, people best suited for earthn have a patient, and strong personality.
I hope this aids you in deciding on your first element. :)
Well my element is water actually based off of both Mizu's and Kyori's information. My personality matches the water element that Kyori explained and my zodiac sign is Pices which is the water element.
Thanks for the information guys
In that case, go with the element that suits you best.
Are you a heavy thinker and logicist?
Or are you more patient ans strong in character?
Also, if you can't decide based on that factor, try going with the one you like best out of the two.