Gordon Brown and Ed Balls who is the more 2nd rate?

Iain Dale's Diary: Gordon Brown is a Second Rater#links has an interesting recollection from the Conservative Party Conference, the question is who was "one of the country's leading political journalists" referred to by Iain Dale?

"Strangely, there seems to be a mood of erie resignation to the fact that Gordon Brown will indeed call one [an election].However, there was one dissenting voice today that I encountered on this - and one I have a lot of respect for. It was a private conversation so I won;t say who it was with, but it was one of the country's leading political journalists. He's convinced Gordon Brown won't risk an election and thinks the polls are massively overstating the Labour lead. He reckons the lead could disappear as quickly as it arrived. The name of Ed Balls then came up. I remarked that I thought Balls was the most overrated politician in British politics and reminded me of Alan B'Stard's hapless assistant, Piers Fletcher-Dervish. No, no no, said the political journalist. "Ed Balls isn't the most overrated politician in British politician. That's Gordon Brown. He's a second rater." I picked up my jaw from the floor and was about to ask him what he meant by that when someone interrupted the conversation."