There are different nuances that affect all three of those valleys in different ways though. Topography width of the valley and height of surrounding hills is very different with all three of those examples.
In general Valley’s can face issues that hilltowns avoid but not always a given.
There are SWFE’s where the upper CTRV can get more snow than Dave in the N Orh hills.
edit: Obviously ULL placement plays a big part.