Going to let the mask slip here:
If you need a reliable, 20+ goals a season in the league, Lukaku is your man.
If you need a big game/big moments guy, someone to come up with key contributions and performances at key moments, you go with Morata
Morata has a combination of physical gifts and technical quality to snap scouts jaws. Problem is, he has the football brain of a donkey. He's never going to be reliable as the main man on a big team
Still, in any single game, he can turn into the best go*d*mn striker in the world
It's like this: Lukaku is a solid, reliable 7. Morata is a 5 who sometimes turns into a 10
It's not surprising that Lukaku has been outperforming Morata. It's also not surprising that Morata outperformed him in the H2H. Morata will win chelsea some big games by himself. He will also score less than Lukaku overall