Merida: self centered and assertive
Aurora: duty bound and passive

How is Aurora winning this?

Most definitely.

Aurora and Merida both were willing at one point to give up their dream to make they're kingdom and family happy.

Snow White and Merida have the same differences as Merida and Aurora minus the things that make Aurora and Merida similar.

^Agreed, except for Snow. They're both assertive and outspoken and like nature so there's that. Whereas Cinderella is introverted and knows when to not be outspoken, is grownup and sophisticated, doesn't count about adventures or action, etc.

Elsa: Timid, Shy, duty bound, passive, sheltered and none feels the lack to confront.
Merida: Bold, Daring, rouge, assertive, free spirited and confronts with force.


In the genuine way, I'll admit Merida is childish while Elsa is way more mature and grounded.

I'd say.

Also Aurora and Elsa. Snow White is also rather dissimiliar rathen similiar to Merida( very compassionate, benevolent, not resentful, not adventurous or risk-loving( despite capability of bravery)).

All the classics, Mulan, and Elsa.

the patience factor, etc.
(though i love them both.)