Hey there,
As a once budding fsim 'er
I've used both the Microsoft 'Prosomething' joystick and the CH Yolk you're talking about, and in my opinion this is how it goes:
For WWII simulations use a joystick, much easier to control your a/c and it suits the WWII feel.
For that Airbus you want to captain, use a joystick for the already mentioned reasons.
But, generally when using fsim I reckon that the CH yolk is far better and more realistic to use - although mine does stick sometimes....
Happy simmin'
Ian