I am not sure what you mean by "better" but I will give it a shot. (I have included the eNotes link to Minerva's character analysis, just in case you hadn't seen it.)
Minerva is the eldest of the four Mirabel sisters. She is bold and unafraid, sometimes to her detriment, but always motivated by the goal of freeing her people from Trujillo's oppressive regime. In the beginning, she is more concerned with her immediate freedom and the freedom of her family, but in the end, she has expanded her largesse to include her entire nation.
It is Minerva who leads her sister's (save Dede) into the rebellion; it is Minerva who "hooks up" with Lio and furthers their efforts towards the resistance. In Chapter 12, Minerva declares, "Adversity was like a key in the lock for me."
Indeed, it seems so. Minerva is never happier than when some formidable obstacle blocks her path. Yet, she is not insensitive to the needs of others. She ministers to the needs of others in prison, often at her own expense. She tenderly cares for each of her sisters, whether or not they understand her. Minerva embodies the theme of the "woman as butterfly"; she is brilliant, attractive, but ultimately, her life is brief. Her impact, however, on her family and her society, is immeasurable.