The Rugby World Cup is upon us, bringing a six-week festival of bone-crunching tackles, super-human power and breathtaking guile and pace to these islands.But who will be crowned champions and who will take the breath away? Are defending champions New Zealand overwhelming favourites? Will hosts England survive the so-called ‘group of death’?Former internationals from the home nations – Jeremy Guscott and Paul Grayson (England), Jonathan Davies and Robert Jones (Wales), Gavin Hastings and Mike Blair (Scotland), plus Stephen Ferris and Denis Hickie (Ireland) – are joined by southern hemisphere stars such as ex-All Black Andrew Mehrtens and Bobby Skinstad (South Africa) to tackle the big questions.