I might be a bit extreme but I think one is born with good flying skills, or he/she is not. As simple as that.
I tried different types of flying and you can always tell almost straight away if someone is born for flying or not, especially at early stages.
Having said that, you can compensate a bit of lack of natural skills with other stuff like studying a lot, practicing a lot, knowing meteorology very well etc etc etc..
All of this is just to say that it doesn t matter if you are a bush pilot, airline pilot, glider pilot, F16 pilot..what matters is the person and his attitude, as for most things in life, this is why a bush pilot can be better than an airline pilot or the other way around..no written rule.