Fatty Greg - "whoever wins its gunna change THEIR LIFE" (**** loads of emphasis on those last two words).
Actually, John T Rhodes says this.
And to show just how really pathetic I am, I know that they re-recorded this quote for the title sequences. In the last series he had an australian twang on the word 'life' (sounded like 'loyyff'), yet this series his twang is on the word 'change' (sounds more like 'choaynge').
I think I watch too much masterchef.