By Seamus Duff Sharon Osbourne and Amanda Holden have raised eyebrows this week by taking aim at each other and their respective careers – leaving many questioning who earns more between the ladies. The gloves came off after 53-year-old Britain’s Got Talent judge Amanda stuck up for her friend and fellow BGT star Simon Cowell, 64, after Sharon, 71, and fellow former X Factor judge Louis Walsh made catty comments about him while they were starring on Celebrity Big Brother last month. Amanda took aim at Sharon and Louis, 71, by suggesting they owed their own success and fortunes to Simon as he g…