I've liked some of the TV drama writing by Tony Garnett, e.g. the series of The Cops and Attachments, and also Tony Marchant, especially his late 90s series Moving On. Jimmy McGovern's series The Street were also good, imo. But these are going back a few years and I agree that British TV drama is in the doldrums at present.
Here is a sceptical view about Scandinavian TV drama. I think the article makes some fair points, though I don't entirely agree with it.