Earlier this month, we presented a side-by-side (by side) comparison of some of the cheapest -- and most expensive -- combat aircraft in the world.

Topping the list was Lockheed Martin's (NYSE:LMT) F-22 Raptor, which cost $412 million a pop to build, followed by Lockheed's other stealth fighter jet, the F-35 Lightning II (a relative steal at just $154 million per plane), and Boeing's (NYSE:BA) bargain of the week, the $100 million F-15K Slam Eagle (a bargain that, unfortunately for Boeing, South Korea just passed on).

But prices drop steeply from there:

  • $44 million for Russia's Sukhoi F-35 Flanker.
  • $36 million for the Russian Su-34 Fullback.
  • A mere $25 million for the Chinese Chengdu JF-17 Thunder.

Would you care to guess which of these planes is the most popular among military buyers around the world? The result may surprise you.

Take a click-tour of the world's most popular fighter jets in the slideshow below.

Fool contributor Rich Smith has no position in any stocks mentioned. The Motley Fool owns shares of Lockheed Martin. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.