Husqvarna 450 is a gas-powered chainsaw with a powerful engine, efficient features, and one-of-a-kind technology. The Stihl MS271 on the other hand is a medium-range affordable chainsaw with good efficiency and helpful features.  Moreover, at the end of the day it all comes down to how do you want to use your chainsaw. If it is for light to medium size tasks go for the Stihl MS 271 chainsaw and the Husqvarna MS 450 is for tough demanding tasks.