Equipment has allowed so many players to be competitive it's an absolute joke. The driver and the ball are WAY easier to hit straight. You can hit these drivers all over the face. You can swing much more steeply now because of the ball. It's not even up for conjecture in my opinion.
I don't think it's up for conjecture either. The gear and the ball make it so much harder for the elite players to separate themselves. Tiger is extraordinary, like a pianist finding a way to dominate in competitions where everyone plays wearing boxing gloves.