And the winner is Notability.

Only for one simple but maybe a rather juvenile reason. – its ability to provide a good writing experience. Let me elaborate – what is a good writing experience.

• Should have sensible paper modes and good formats to write on. – GoodNotes 5 has this option but I think Notability with its many simple options wins the battle.
• The ability to provide with options while writing. the easy switch between pen and eraser. Currently not present in Notability but there in GoodNotes 5. I hope Notability can bring in this feature ASAP.
• The added advantage of having a planner built right into Notability is a great plus for me personally. However, I am not sure if the planner can integrate into the calendar as yet. The absence of this options on GoodNotes is a bummer.

but I must confess I continue using Craft aggressively, even though it is evolving at a very slow pace.