Cumbernauld is a midden. Never been to Denny. Nowhere comes near to Cranhill, Ruchazie or Barlornock for the ultimate in middenry though, I know they are not towns per se but they need to be mentioned when squalor is the topic of conversation.
Ayr? I'm not having that that. Maybe out in Whittlets etc. but Ayr's a paradise compared to places like Lochgelly and Cowdenbeath.
I have to agree with DD here. Methil and Methilhill are the worst places in Scotland. Although Ballingray is something else as well. I like Dundee but Douglas and Whitfield are two of the worst schemes in Scotland. Am no having Peterhead, the Blue Toon is picturesque, at least after a good swally it is. Special mention to Croy as well, what a **** hole. I was on a train that broke down there once. It was like the set of 28 days later.
Girvan is actually a nice wee toon. However, there is one loony who stomps up and down the High Street every day dressed in a Rangers top, draped in the Union Flag, carrying a bottle of buckfast and spouting obscenties as well as racist and bigoted bile. He has the word LOYAL tattooed on his forehead.
I'd nominate Annan. What a grey depressing place of a dump, and that's when it's sunny. Even the people are grey and depressing. Best thing that happened to it was the Annan bypass.