Both equals in the BBing world.
Of course. In fair shows they would've split the wins and Oliva would've competed in the Olympia throughout the 70s knowing he'd have a fair shot. Likewise for Nubret and guys like Padilla who retired after unfair decisions.
Between them, Columbu Zane and others never win.
Schwarzenegger showed up in his best condition in 73-74 because he was expecting Oliva to be there, after backing down from Oliva's challenge while Arnold sat in the audience of the Mr. International show.