My favourite saw is a sharp one that starts easily and cuts fast.
I do have a special fondness for one of the early 441’s. A lot of people had issues with them. Mine was a raging screamer right out of the box.
All my other saws have been ported or exhaust modded and timing advanced. When people pick up that 441 they assume it has had a bit of work. The only I have done to it is change the sprocket to give it a bit more poke.