Guinness: Nigeria vs Ireland

Since I got hold of the Nigerian version, I thought I'd try to compare it with the Irish version (which I also changed the rating of from 2/6 to 4/6):

• Appearance: The Nigerian version has darker and less head, and the head doesn't last as long.
  
• Aroma: The Nigerian version is sweeter, almost artificial. More malt?
  
• Taste: The Nigerian version is more fruity and sweeter. The Irish version is more bitter.