This really isn’t as big of a deal as you’re imagining it to be. Just pick whichever you prefer. I chose to have my nose pierced on the right side, because there is a slight imbalance between my nostrils, one appears to be just a tiny bit higher than the other. I thought that wearing a ring on the right would make them look more level, and it did. That’s the only reason I can think of for there to be any reason at all to decide which side to pierce. Otherwise, it makes no difference at all. As for your industrial, do you tend to sleep on one side more than the other? If so, get the ear pierced that is less likely to be touching the pillow.