I vouch for the minolta maxxum 7000...
NO, NO, NO!!! Didn't you see that "plastic" is not allowed to be "classic"?

And Heaven forbid it's autofocus - that doesn't "make" it a classic, it "disqualifies" it
I own a camera that's DEFINITELY a classic. It even says so on the front - Minolta Dynax 600si Classic

(Note - I'm kidding about this one, but I couldn't help myself).
If only one camera was allowed to be called a classic (oops, I mean "the" classic), then the Nikon F has a good case. But why must we exclude cameras that defined or re-defined a genre? Cameras that were a standout in their day?
IMO there are a number of classics, and these are by no means all of them - just some that I think should make the cut:
Nikon F, F3, F4
Minolta SRT-101, XD-11, Maxxum 7000, Maxxum 7
Olympus OM1
Canon F-1
@ 2F/2F - try living in Australia without aircon in your car. If you can leave it locked up for a few hours and get in without cursing and gagging for air, you're doing well
Regards,
Gordon