Australia would struggle - it was England's attack that won the Ashes last year but even as an England fan I cannot put Hoggard, Harmison, S Jones, and Flintoff in the same league as Marshall, Garner, Croft, Holding, Ambrose, Walsh, Bishop...pace bowling standards (England apart) aren't even as good as the late 90's when Australia faced Wasim and Waqar, Donald and Pollock, Ambrose and Walsh...the current Aussies aren't used to that quality of bowling which is why England stopped them getting 400 and they'd probably struggle to get 300 against 80's Windies(and from what i've seen of that team they caught better than England did last year).