11" iPad Pro, base everything WiFi only w/ Keyboard - $1,098.00 weight: 2.36 lbs.
12.9" iPad Pro, base everything WiFi only w/ Keyboard - $1,348.00 weight: 2.98 lbs.
13.3" MacBook Air, base specs, already has keyboard $999.00 weight: 2.8 lbs.
13.3" MacBook Pro, base specs, already has keyboard - $1,299.00 weight: 3.02 lbs.
So the Air is cheaper but weighs more than the 11" Pro with keyboard but also has a bigger screen.
The MacBook Pro weight is almost the same (less than 1 ounce more) as the 12.9" Pro with keyboard, has a bigger screen, and costs less.
Catalina and undoubtedly the next release of macOS will bring more native iOS apps to the Mac. But you still can't run macOS on an iPad Pro. And that's still a glaring difference.