North vs South for music

I’m sure there’s been threads on this before. Been having this debate on twitter, and a fair few times in real life in the past. Seems ridiculously biased and blinkered to say anything other than the South (although plenty of northerners have managed it). You can have personal opinions on bands you prefer (I’d still comfortably pick South), but the record sales don’t lie, and 2 minutes of research shows me that of the 38 British acts to sell 50 million or more records, around 27 were Southern. 5 from the North, few from Birmingham and Wales. So, personal opinions on which side of the country’s music you prefer, and any counter arguments to the cold hard facts of popularity?