100% he's the best I've seen. Bosnich was the previous best in terms of outrageous talent. Emi is better because his all round game has no weaknesses. The drop off in quality when he doesn't play is stark because of this, whereas Spink and Oakes could deputise reasonably well for Bozzie. Although more is asked of the modern keeper.
Sam Hardy a favourite of my Grandad too, so I've heard.