Billy Bragg's got a pugnacious in-yer-face quality, combined with a remarkable sensitivity that's a pretty unusual combination, and that does make him stand out from the rest. And it didn't happen overnight.
Pete Morton is a fine songwriter and performer. But people writing in the music press tend not to be particularly interested in music or in songs, so they wouldn't know what to write about him. And they know the public they're writing for, I suppose.
And that goes for a lot of other singers and songwriters. The thing is, don't rely on the music press - you find out about them by word of mouth. And that especially includes the Mudcat. If we come across someone who's a knockout, we should let people know here.