One of the first things a writer (or a keen reader) realizes is that everything is autobiographical. Some writers wear this fact proudly; others like to hide it under layers and layers of distancing tricks; but the fact remains: a careful reader can always pick up the fictional threads that lead back to the writer's reality.
Digging through my favorite writers' heads is one of my favorite pastimes. As such, Russel T Davies has a wonderfully big one to roam around in. Brash, outspoken, confrontational, Davies wears his convictions on his sleeve, unapologetic about his radicalism. People (like myself) whose politics are in line with his might see him as an activist, a champion who screams the things too many people are afraid to whisper. Others wish he'd just shut the hell up.