Who deserves a bigger split percentage between Spence and Crawford ? Who is the bigger 'draw' ?

[margaret thatcher]

crawford wins right now

seems like a fight that should be around 50-50 for pay, though spence does better numbers and has been promoted better, so i can take a few points his way before it starts to seem diva-ish and like he's not actually that pumped for the fight

do the 'winner gets more' things ever happen in high level boxing? doesnt seem like it. in reality fighters and their teams prob actually arent as confident as they show