The producers never learn when it comes to favouritism. As previously mentioned they will always have the chosen one who will get the majority of the Bush Telegraph appearances, essentially taking on the role of narrator for the series. I'm presuming this is because they will be a frontrunner for new projects at ITV and they are essentially testing the waters and drawing up support for the individual concerned.
It's the total lack of edit some get that really miffs me. I remember in the last Australian series Nadine Coyle got an absolute piss-poor edit because the producers were predominantly focusing on Jacqueline, who unsurprisingly went on to win.