The World Cup is pretty big news here (lots of people watching it in my area, including me), and it's even bigger news over east.
The really big rugby matches over east are rugby league, though - especially the Queensland vs NSW State of Origin series, which is usually at a world class standard for that code, and obviously the NRL finals series.
On the union side, Super Rugby is a pretty big deal as well. And union's the biggest rugby code here in WA. The Western Force get the prawn sandwich brigade, corporate boxes, fancy expats etc even though real people here couldn't give a shit.Â
AFL is the biggest sport by a mile in WA.Â