The Bell 205/212, by far the most popular, the most utilized, the most efficient ski aircraft in the world.
Sure a B3 has power, but how much money can you make with a guide plus 4 skiers? It works excellent on a very limited basis, given some extreme high altitudes, etc. Even the Bell 407 is used more in the ski industry than B3's...simply economics...that 5th paying seat creates more revenue. The largest Heli-Ski operator in the world chose 407's for that one simple reason.