When I think of yg & wg, to me yg is warmer... reminds me of the sun and summer days. WG is cooler, the moon and starlit nights.
I prefer the yg mop for this reason. Between the yg & rg, I still prefer the yg, bc for me, the rg is too close to my own skin tone... not enough oomph. RG gives me a softer, more feminine feeling.
Between all of these, I'd still have to go with the yg mop as its classic vca and can be dressed up or down depending on the outfit.
That said.. I put in my order for the yg/onyx 5 motif bracelet! So happy... I won't get it right away as it has to be resized, but I feel good about the purchase.