I actually don't consider them an either this or that. They are two totally different places with entirely different menus.
If you are looking for a wonderful steak then YSH.
The only thing they have in common are location. IMHO!
We do like the pre fixe option at CG. Food was good - service was so slow it was insane!
We just ate there Friday night - I kept blaming DH and asking him why he had to order chowder....it takes a long time to make. Seriously two hour dinner.
we just went to the yachtsmen & it was my favorite steak out of all of the ones we had get the truffle mac & chz!!!!