I have extensively flown bad 402's and bad Chieftain's.
The Chieftain is a truck. It hauls more, chugs along anywhere, and drags half the ice in the Pacific Northwest along with it.
The 402 is more enjoyable and more responsive. Compared to the chieftain-truck, the 402 is one of those silly crossover vehicles, that look like an SUV but are build on a car chassis and have one microinch of ground clearance. You can put stuff in it, and it doesn't fly like a truck, but it's more delicate and will lose speed quickly in ice. On the bad days, flight plan accordingly!!
I'd rather fly a 402. I'd rather work a job in a Chieftain.