Best World of Westeros Franchise Second Son

In the known world of Westeros, Essos, and Sothoryos being firstborn has inherent advantages. Upon the impending marriage of King Viserys I to Alicent Hightower, Corlys 'The Sea Snake' Velaryon reaches out to potential ally, Prince Daemon Targaryen feeling that they are both "made from the same cloth as second sons." He sympathizes stating that they both "made their own way in the world." But, their future he strongly states "as seconds of the realm, our wealth is not given, it must be made."

Despite their secondary birthright, which of these World of Westeros franchise second sons made the most of their opportunities?

SPOILER ALERT: Intended for viewers current through the 2022 season, as poll displays depicted, discussed or backstory Game of Thrones (2011) and House of the Dragon (2022) second sons.

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