[Stentor]

If you want the "vintage" look and are ok with non-DOT, bias-ply tires, then go with the Goodyear billboards (they look awesome, but you need to be comfortable with the limitations outlined earlier).

If you want a DOT radial tire, you should consider the Avons (some say they are about the best 15" Cobra tire on the market right now). The primary downside of the Avons is the cost (as they cost considerably more than the other tires that have been mentioned).