@Delongpre I totally agree. Elsa is basically Disney's version of Elphaba. Here are just some of the similarities:
-Both of their names start with an 'EL' and ends with an "A". (Elsa / Elphaba)
-Both are socially isolated and repressive teenagers
-Both are terrified of hurting the ones they love.
-Both are misunderstood older sisters.
-Both are looked at as villains (evil witches) in the beginning because of their uncontrollable powers and because of the manipulation of others.
-Both runaway and hide in a castle.
-Both of their stories are eventually a celebration of empowerment
-Let it Go and Defying Gravity are their turning point songs that are very similar.
-Both characters say similar things
Elsa: "Yes, I'm alone, but I'm alone and free."
Elphaba: "And if I'm flying solo, at least I'm flying free!"
Elsa: It's time to see what I can do. To test the limits and break through
Elphaba: I'm through accepting limits 'cause someone else says they're so...It's time to try Defying gravity
Elsa: No right, no wrong, no rules for me, I'm free!
Elphaba: I'm through with playing by the rules of someone else's game. It's time to trust my instincts, close my eyes and leap!
Elsa: Here I stand and here I'll stay
Elphaba: I'm defying gravity and you can't pull me down
-And of course...Both characters were performed by Idina Menzel