Can only talk for myself, coming from the South, but it's never been a big thing for me. Most towns/cities in the South are too caught up in their own rivalries with each other to worry.

I have lived in both North and South Wales and now I live in Mid Wales so I am well qualified to comment!

As grendel said there is no real rivalry, people from the South tend to take the p*ss out of those from the North for sounding like scousers and people from the North tend to take the p*ss out of those from the South for having no money.

Generally Welsh people all tend to get along well because we KNOW we are better than the rest of the UK and don't really have to prove anything by petty squabbles amongst ourselves like the English tend to do.

oooh bitchy

Not North v South exactly BUT We have had in the recent past EAST V WEST Wales in terms of the Welsh Conference players playing matches against each other in Bridgend possibly others.
East - Newport, Cardiff,Torfaen, Blackwood,Valley Cougars,
West- Bridgend, Swansea,Neath-Port Talbot, Dinefwr (West Wales) i think it was split.

As a Southerner living in 'Gogland' I got plenty of stick regarding accent , sheep etc normally reserved for English people when visiting our bigger neighbours. Many people think South Wales gets too much attention and the two areas are quite different sharing more in common with the English borders. It might be something worth pursuing in the future. Never understood why they stopped Lancashire v Yorkshire.

Ah but were you calling everyone 'Butty'? And was everything 'Tidy'?

Tidy mun

To me there are two places that are Wales north or greater Wales which is the country and south or lesser Wales which is that dump inbred hole tacked onto Devon