Only way is up for One Direction in USA

One Direction and The Wanted are making waves across the Atlantic, and the bookies favour the X Factor contestants as the first of the two to have a US number one single.One Direction's first hit peaked at 28 on the American chart, while The Wanted reached a high of 23.Boylesports are offering these odds:Who will be the first to have a US number one single?The Wanted 7/4One Direction 2/5Who will chart higher in US singles chart in 2012The Wanted (peak at 23, now, six weeks on chart) 7/4One Direction (peak at 28, now one week on chart) 2/5