For the ideal antipasto, I'm thinking cured meats like prosciutto and Italian sausages, some good cheese like aged provolone, parmigiano Regianno, some Gorgonzola perhaps. Crisp bread sticks. A couple varieties of good olives, preferably marinated in garlic, etc, not California black olives.
Add some roasted red peppers, and maybe some of those small round Italian marinated onions, whose name escapes me right now....
Pepperocini peppers, too. If you are really adventurous, some marinated seafood like octopus or sardines. Also, it should be just a bite or so of each item, it's not a meal, it's an appetizer, meant to be shared with a lot of people.
That being said, my wife and I on more than one occassion, have made a bottle of red wine and an antipasto platter our light evening meal before a movie out.....
A quality antipasto platter isn't cheap, either. The spread I'm referencing above is about $30-40 in these parts.....