I'm European and we primarily use Chlorhexidine or Betadine. This what i was taught:

Chlorhexidine stings, but is clear and does not cause issues with people sensitive to iodine.

Betadine doesn't sting, but stains. So we are taught not to use betadine when you need to go a doctor to get the wound looked at. The staining makes it harder to identify what is what.