Wings of fire fans come on down to this question

If a rainwing and a icewing become maried what kind of egg will hatch from them?

I've had this debate with my friend so many times! In personal belief, I came to the conclusion that it would most likely be an icewing. Being that rain is a main component of ice, and ice is dominant over rain. My friend tried to say it would be a snowwing, and she wouldn't explain her reasoning.