SugarShane
C12 H22 O11
You could make arguments for many including Geelong and Melbourne among others, but I would go Sydney.
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But then I look at it the other way. Are we their rivals?
This is the roadblock I run into when thinking about rivals. Depends how you define a rivalry I guess. A team we love to beat? Or does the feeling have to be on both sides.
In terms of our rivals:
Hawthorn? Yes, absolutely. But to them? Doubtful. For the last 10+ years it's nearly always been a matter of rock up and get the 4 points against us, often with dodgy help. Why would they feel a rivalry to a team they always beat?
Bulldogs definitely seemed to be going that way in 2015. But then they kind of ascended past our level. It was funny because we beat them in an away final, then Luke Beveridge's Pro Skater had a sook about Talia, but then they followed that game with the Pannell free kickathon. Was shaping up big time in 2016, but then they won a flag and in doing so made a few other rivals. After that would they give a shit about playing us? Not really.
West Coast maybe, but I feel like we're more united over our similar histories and big brother status. Did lose some heartbreakers to them though.
Richmond? Nah. We hate them because we shit the bed against them. But similar to the Hawks here. Why would they care about us? Do we care about St Kilda or North? Yeah we "got a few back on them" afterwards, and seem to play well against them at AO. But grand finals are at the MCG so who cares.
Geelong is perhaps one that has a bit of fuel. I get the feeling they like beating us nearly as much as we like beating them. North probably hate us but like I mentioned before, I don't think we really care about them. Regardless of who the actual answer is, they don't come within daylight to Port.