I can offer this much, after flying for well over 40 years now (accident-free).
What makes a good pilot can be broken down into three co-equal characteristics:
1. Good stick. A smooth, capable control touch.
2. Smarts. Intelligence, and a keen, studied grasp of all the necessary aviation knowledge.
3. Good judgement. Can be counted upon to make the right, safe decisions.
To be a good pilot, it takes all three.