It boils down to this:
Chin wing makes your lower jaw wider by basically disconnecting the lower edge and moving it forward/outwards. ZO makes your midface wider by moving part of the zygomatic bone outwards. Both movements are stabilised with bone grafts, often harvested from the hip (yay, big scar). Chin wings often introduce additional asymmetry.
So if you have a narrow face, both might be a good idea. If you're looking for flared jaw angles, improved gonion angle in the back, or high model-like cheekbones, then you're probably out of luck.
Avoid implants at all costs.