Who should round out the "Marvel Comic Trinity?"

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For DC, the "Trinity" is Batman, Superman, and Wonder Woman. For Marvel, we have Wolverine as the "Dark Hero," and Spiderman as the "Boy Scout." But what Marvel character could be the answer to Wonderwoman? Who has her fan base? Storm, as was in the Marvel vs DC, though she may be dropping out of the scene, now that she married Black Panther. Rouge? She did have a series, but it was cut pretty quickly? Susan Richards? She has brains, powers, and character... Someone else entirely?