5: Sukhoi Su-57:

This 5th generation Russian air fighter has undergone a number of modifications and improvements since its inception. The hallmark of the Su-57 is a infrared signature and low radar system that makes the Sukhoi Su-57 one of the top low-flying jets in the world. Combine that with a sophisticated engine design that provides for a faster thrust and you have a very capable flying machine. Russian-made Su-57s have been outfitted with hypersonic missiles and deployed on the battlefield in modern conflicts like Syria to devastating effect.