Jose Aldo, in many ways, is Anderson Silva, Jr. He's a Brazilian UFC Champion with a black belt in Brazilian jiu jitsu, though he rarely needs to show off his ground game because of his superior stand-up skills, something he has proven in his 11 fights with the WEC/UFC.
He has defeated submission specialists, knockout artists and top-flight wrestlers with ease, successfully defending the WEC/UFC Featherweight Championship five times since knocking out Mike Brown to win the title in November of 2009.
"The Korean Zombie" Chan Sung Jung will bring nothing to the table that Aldo has not already seen. Much like Anderson Silva, the person who defeats Jose Aldo will need a near perfect mix of wrestling skills, submission defense for when they do take Aldo down and enough stand-up power to keep Aldo guessing if only for a split-second so that he's not defending take downs the whole fight.
Jung does not have the wrestling game that someone like Mike Brown, a high school state champion, or Urijah Faber, who wrestled at Division I University of California-Davis, possesses, and Aldo kept those fights on the feet, winning dominantly both times.
Jung for all his supposed success, has been a very unpredictable, somewhat inconsistent fighter. He let his first fight under the Zuffa banner go the distance with Leonard Garcia despite Garcia constantly gassing himself out after Jung abandoned any sort of game plan and proceeded to engage in a 15-minute display of offense with "Bad Boy," with the concept of defense not really existing after the first round of the fight. He then was knocked out by George Roop, who entered the fight with one career win by KO/TKO. Hes looked better in his last three fights, including highlight-reel finishes of Garcia and Mark Hominick, but Garcia and Hominick are not Jose Aldo.
For that matter, nobody at 145 pounds in the world is Jose Aldo, which is why it seems as if Aldo will be champion for a long time.