Choker = Slaying > Fending
Earrings = Interchangeable
Wrist = Interchangeable / Fending has Accuracy, Slaying doesn't
Rings = Interchangeable
The important thing about crafted accessories is to get the STR + VIT, so if you can afford to meld the Fending Choker but not the Slaying one then get the Fending. I personally recommend just getting 3 accessories, ideally Slaying Choker + Fending Earrings/Fending Bracelet + Slaying/Fending Ring as with i190+ that will give you enough health for A1S-A3S, and with more gear it'll give you enough for A4S. If you can afford all 5, get all 5, but if you can only afford 3 then you'll be solid too. Even 2 pentamelds is a solid number if you have some i200 or i210 gear on your left side.
