Billy Bragg by far. Exhibit A:
"I saw two shooting stars last night,
I wished on them but they were only sattelites,
It's wrong to wish on space hardware,
I wish I wish I wish you'd care"
"When will you wake up to the fact your paper is Tory,
and realise there are two sides to every story"
"Just because I dress like this,
Doesn't mean I'm a communist"
And, y'know, all of "Saturday Boy".