I ave personally destroyed several of the shimano and acs freewheels and soo I went and bought a white industries freewheel about 4 years ago for my bad weather bike it has been thru every bad rain storm since and even been submerged a few times I have never once cleaned or lubed he drivetrain and it has never once caused a problem
and as far as sound I like loud prawls that means they have strong springs and wont slip under weight and force

but to each their own