Rugby doesn't have a hooligan problem. Fans aren't even segregated in the stadium.

To be pedantic, the Rugby World Cup 2015 has been awarded to ENGLAND, not Britain. Though it is possible the Millennium Stadium, Cardiff, Wales will be used, but this will not be confirmed until next year.

The stadium that will definitely be used are;

Twickenham, London
Wembley, London
Emirates Stadium, London
Old Trafford, Manchester
St James' Park, Newcastle
Anfield, Liverpool
Elland Road, Leeds
Ricoh Arena, Coventry
Welford Road, Leicester
Kingsholm, Gloucester
St Mary's, Southampton

The only stadium outside England to host matches will be Cardiff's Millennium Stadium, which will stage two quarter-finals and some pool matches.