We’ve been researching X Factor a lot lately, and we’ve discovered one aspect of the show that hasn’t gained a single word of coverage – Louis Walsh’s hair.

We can’t be the only ones who have noticed Louis Walsh’s X Factor hair, can we? With each week of X Factor that passes, it gets a little bit less grey and a little bit more fluffy. It’s true – for the first 20 minutes of Saturday’s X Factor we were honestly convinced that Louis Walsh was either wearing a cossack’s hat or had a rabbit perched on top of his head. We think it’s because this year Simon Cowell seems determined to remind Louis of how old-fashioned he is at every opportunity, and Louis is trying to young his hair up a bit more each week as a result. At this rate he’ll have a full-on emo fringe by Christmas. Let’s make that happen, people.

But who’ll win X Factor? Here are the X Factor betting odds for Niki Evans and Rhydian Roberts, with help from Paddy Power…

Niki Evans – The Niki Evans X Factor checklist is growing all the time. Can Niki sing power-ballads? Check. Can Niki Evans sing showtunes with a man playing a trombone through her legs? Check. Can Niki Evans sing anything else? Um… You see, on Saturday’s X Factor Niki Evans got to sing yet another power-ballad – Because Of You by Kelly Clarkson. But this was a power-ballad with a twist, because it meant that the X Factor production team could dress Niki Evans up in a studded leather outfit and make her sing next to some fire, which we’ve always taken to be a sort of freakish shorthand for ‘Look! Bonnie Tyler!’ – especially when combined with the soft-rock hunch and fist-clench stance that Niki seemed so determined to roll out while singing it. Anyway, it’s nice to see that Niki Evans is still well on course to become the quickly-forgotten second-place X Factor runner-up this year. Current X Factor betting odds – 4/1

Rhydian Roberts – Rhydian Roberts tried something completely new on Saturday’s X Factor – he tried singing a song without hobbiting around the stage like some sort of melodramatic Scandinavian elf-king, and chose You Raise Me Up as his song to do it. Although Rhydian got a standing ovation from all of the X Factor judges for it, we’re not convinced – at best it seemed like Rhydian’s audition for a career of singing the national anthem before minor international sporting events. True, Rhydian’s performance on Saturday’s X Factor made him seem like a real person as opposed to the malevolent dictator of an imaginary colony of space-goblins, but you know what? We actually quite like space goblins. Still, Rhydian remains favourite to win X Factor, so at least hopefully this time next year he’ll be able to sing a Bleeding Love-style radio hit in the style of a startled moose on a rollercoaster. Current X Factor betting odds – 8/15

Tomorrow: Strictly Come Dancing betting odds. But if that’s too long to wait – or you feel like making more money than you know what to do with – head right over to the Paddy Power X Factor betting odds page to see the latest, and best, betting odds.