Mournhold is best. Elden is probably second best which isn't an option. Then probably wayrest and the other 3 you have a very similar. Xbox NA but use to play PC and felt the same.
The answer though is they are all basically the same at this point. I love / hate add ons like TTC. I use to find amazing deals from those super random trader locations. Now though with TTC if that one has the best deal everyone sees it.