From Remote Alaska to Bankstown Circuit to Millingimbi to Lagos every area has its own issues these may be Ice, Heat, Wildlife, Thunderstorms, Terrain, Civil Wars etc. etc.
To say that one area is more demanding than another is petty and a waste of time.
Each area requires a learning curve. I am sure that the best of the bush pilots in Alaska would face a few challenges adapting to the Top End, and vice versa.