It's not an argument, it's a discussion and without threads like this, the forum would be full of questions about tuning SUs and what part goes where threads which are pretty boring. You can pretty much quash any discussion thread by saying "do what you want".
Arguably the 2+2 is a different car to the 2 seater as well by that measure, it has a completely different floor pan. The '76 onward 260Z 2 seaters could be said to not share a commonality with the 240Z too. Come to think of it, I wonder besides the front panels how much of the componentry actually would be interchangeable between the two without some modification. Like obviously the drive line, because even my 240Z has Z31, Skyline and Navara bits in it but all the interior, doors, hatch, fuel systems etc were all quite updated by that stage.
My first car was a '78 2+2 too, but I i think basically all 2 seaters are > 2+2s in the looks and street car performance departments.
Gav I don't think we should have to clarify if it's personal preference, surely all posts on a forum are taken from that angle. Or are people so sensitive we have to coddle their feelings? hahah.