Who's going to sell the most albums, Dido or Robbie?(The big question)

"Super Monday" hardly gets more super than today, when the UK's biggest-selling male artist Robbie Williams and his female equivalent Dido have new albums released simultaneously. But who is going to win the battle of the genders?

Michelle Garnett, Sneak magazine acting editor

"Dido, because with Robbie there are going to be people who'll want to relive the moment of the gigs, but might wait to buy the DVD because it's going to give them more. The Dido one is very similar to the last one and people know what they're going to get. It's very radio-friendly and it's a real dinner party album that you can play in the background."

Ian De-Whytell, Leeds-based indie store Crash Records' proprietor

"Probably the Robbie album. He's got such a huge profile, so people will he more likely to go out and buy that album in week one as the fanbase is so big. With Dido, the sales will be more spread out than Robbie's. But, as a specialist shop, we're more excited about albums that aren't available everywhere."

David O'Reilly, Woolworths product manager

"I think it's going to be Dido. Initially when we looked at it we thought Robbie would do it, but the performance of the Dido single suggests there's a ...