Of the teen series of U.S. fighters (F-14, F-15, F-16, F-18), which do you think was the most effective overall?
My vote goes for the F-16. It started as an agile dogfighter with an amazing thrust to weight ratio, and with added electronic equipment, it became a versatile air-to-ground and beyond-visual-range fighter/attack jet.
The F-16 was not extremely expensive like the -14 or -15, so airforces could afford to have many of them. It combined all the aspects of a dogfighter (high thrust to weight, excellent visibility, small size) with modern electronics to enable it to pursue other tasks. And not least, its single engine used half the fuel of the -14 and -15, so pilots could theoretically train much longer than in twin engined fighters.