The North East has some of the best year round fishing in comparison to anywhere else in the country. Take it from someone who lived on the south coast for 20 years and has fished from Chesil in the west to Dungeness in the east as well as having to travel as far as Suffolk to get in some decent spring cod fishing.
Smoothhound get boring after a while (no skill whatsoever involved in catching even double figure fish), I miss Bream fishing and the variety of warm water species. But what is often overlooked is how seasonal it all is. Smoothhound fishing is from June to late August, then maybe a month after Sole, the slim chance of a few codling from September to December then it is pants for five months unless the Plaice show up. Oh and almost all year round you are just as likely to be hauling in ten tons of weed as you are fish.
Up here cod are a year round prospect with some excellent autumn /winter / spring fishing when conditions are right. Once the water clears in spring there is some excellent Plaice fishing to be had (far better than I ever had on the South coast); as the water warms Pollock start to show along with the ubiquitous Coalfish. Mackerel are much bigger than you get in the English channel / South coast (look at the MLS if you don't believe me); there is great Flounder fishing in both the Wear and the Tyne (and some big Dab to be targetted) and I haven't even started on summer Kelp cod fishing, or Wrasse, or Bass, or the increasing number of Thornback and Spotted Ray being caught.
Believe me, I've fished plenty of places around the country but for all year round sport the NE coast takes some beating.