By David Craven Sam Tomkins reckons Warrington boss Sam Burgess is one of Super League’s biggest signings – but won’t stop the “usual suspects” battling for glory. The new season kicks off with a hugely-anticipated Hull derby on Thursday. And plenty of eyes will be on superstar Burgess when he takes charge of Wolves for the first time in Perpignan on Saturday. But ex-England captain Tomkins, who retired after Catalans’ Grand Final heartache against Wigan in October, believes it will take some effort to deny the leading clutch. He said: “St Helens will be strong. Daryl Clark will make a big dif…