Itachi was underrated. For starters, let’s put the whole Itachi was Madara debate aside and look at Itachi’s achievements.
- He was able to use the shadow clone perfectly at the age of 5.
- Itachi was the youngest ninja to ever join the ANBU black Ops.
- He took on his whole clan single handedly despite knowing the risks. I do know Obito played a part in this, but he did go up against a whole clan.
- Itachi possessed Hokage level maturity at a very young age. If the Uchiha clan wasn’t annihilated, he would’ve become the fifth Hokage undoubtedly.
- He destroyed the famed Kakashi Hatake with a single look. What’s interesting is, Kakashi couldn’t get up for days.
- He knew the village inside out, right from the dirty work Danzo did to the coup d’tat in his clan.
- He was a visionary, the fact that he placed a crow in Naruto for the future speaks volumes.
- He was able to overturn his reanimation and successfully destroy Kabuto for eternity.
- He anticipated every single move of his opponents even before they had it in sights.
- He trapped Orochimaru in a Genjutsu and spared his life for the sake of Akatsuki.
Last but not the least he was wise, calm and knowledgeable. This alone made him a badass.