570 or 850

Don’t want to start a war but need input on which machine you would buy and why. I’m having a real difficult time making up my mind.

My biggest concerns are I hear the 570 has a noisy engine/clutch and a clunking sound when engaging but the 850 is $2K more!!

I just got rid of a RZR due to the weird noises and jerking clutch. Want to go back to a quad. Thanks.