There are so many possible combinations of conditions at the time of any crash, that a prediction would be impossible until the aircraft came to a stop, intact, in pieces or in flames. Weather, landing surface, plane damage, pilot skill, etc. With landing on the Hudson, they had the best of all conditions. Had a wingtip touched the water, had they hit ice chunks in the water (they were doing 150 mph when they touched the water), less pilot cool, guts and skill, and it could have been just another no-survivor crash.
The biggest problem in the Arctic and surroundings would probably be weather, closely followed by landing surface. All the luck and skill in the world isn't going to change the outcome if you're making a dead-stick landing in a whiteout with a hill of ice dead ahead.
I guess you just hope that your plane would be the exception.
Good article on that Gander rescue, Streamside. I had never thought about why there weren't any helicopters in WWII movies! The article emphasizes how emergency rescue methods have been improved, yet so much depends on the brains, muscle and knowledge of the rescuers.
Sue