Decent list, but....
......when I think of awesomest classic cabinets there would be a few things to consider:
Is 'classic' era pre-1990?
Would 'awesome' cabinets be talking about artwork, cabinet construction, controls, game play or all of the above?
Personally, I consider classic era to be pre-1990 (possibly 1987 or older being 25+ years).
As for awesome cabinets I would say artwork, cabinet construction, controls and probably not as much on the game play (but important as a collector).
My list would include (12 off he top of my head in no particular order):
1. Star Wars Cockpit
2. Tron
3. EDOT
4. Wacko
5. Tapper
6. Satan's Hollow
7. Paperboy
8. Spy Hunter Cockpit
9. Major Havoc (dedicated)
10. 720 degrees
11. Battlezone
12. Sinistar Cockpit
-GackAttack