The best comparison I've read was in MOTOR Dan.
May 2008. All GTRs are compared and critiqued. This was a main feature.
Greg, you're entitled to your own opinion but many will differ. Anomalies have occurred over the ages. I mean, why would a XY Phase III be worth so much when it was whopped by an XU-1? I could have picked up a Bathurst winner in a XJS with 38,000 Km until my Mum's friend a widow, realised how little it would pull in dollar terms.
Auction prices in Japan serve to dictate BNR34 values here depending on what model. We here in Oz simply reflect that. Maybe Nissan should bring out an N1 R35 -with no leather, no air, no radio/speakers etc?