Your choices are Stark A, the Stark who would not be terribly miscast in a Rudolph Valentino biopic - who has apparently been hiding a massively important clue from everyone...
Or Stark B, who currently looks like one of the co-stars of Weird Science, and to who literally every scrap of evidence since the beginning of this thing has pointed directly towards.
In exchange, I'm gonna do something super fucking cool that's gonna make things so much easier on everyone. Hopefully.