I tested both. Both are EXCELLENT....!
If you are low on the face I would lean towards the Apex Pro '19. Better feel and overall on bottom grove shots in my testing. I was going to switch to the 785 honestly from '16 Apex Pros but after testing and hitting the '19 Pros I stayed Cally. The new Apex Pros are everything you see in the reviews. I would test them both side by side if you can, as noted both are excellent and what fits one my not fit another.
I will be the different opinion here. I feel the 785 are very consistent distance wise. That to me is where they beat the AP. Both are great clubs, but I think the 785s are a better all around stick.
I hit both and A.P. were softer but Z785 maybe a hair longer? AP also a little smaller in size.