Many fans back in Naruto verse during the 4 great ninja war that might guy was the strongest shinobi alive. However, that was not the case. Madara Uchiha was only impressed by the amazing feats and Power of the 8 Gates that Might Guy had activated during their fight.
Normally shinobis such as Might Guy with no talent for Ninjutsu or Genjutsu just through sheer willpower and training are usually rare and powerful. Might guy exceedingly exhibited the power that could even bend the space and air.
It was not that Guy at the time was the strongest fighter ever, however, Madara was just enjoying this fight because no one had ever hurt him like that since Hashirama. You can see and feel the pleasure just by looking at Madaras’s face during their battle.
On the other hand, even though Madara could have easily stopped Might guy if he wanted to, however, Madara still was pretty much impressive considering he was the only one who did fatal damage, while Madara had never been serious the entire war arc and fight.
It was hard work, training, and effort Might Guy put in and people thought he was weak or talentless which made him so much power.
Why Madara Declared Might Guy As The Strongest?
Madara while fighting Might Guy in the Naruto war arc declared Guy as the strongest in Taijutsu over all other Taijutsu user’s that he ever faced. However, Guy’s father “Might Duy” also mastered the th8 inner gate formation. His father’s formation was not shown in anime more in the manga.
Guy’s 8th inner gate opening is the strongest move of Might and it is called Night Guy one single kick of such speed could defeat the 5 five Kages in one blow.
The space around Guy’s final move makes the air around him distorted due to immense strength, Madara was not able to use the space ability Guy had as a Jinchuriki, Which is why Madara declared might Guy has the strongest Shinobi in Taijutsu, not the strongest shinobi.
Madara’s declaration of Might Guy as the strongest in Taijutsu was specifically for Guy because everyone there during the final stage of the war, only the 8 gates inner gate Might Guy had was the strongest. This declaration was also before Naruto and Sasuke received their sage of six paths chakra powers.
So, during that fight, Madara being a Jinchurik had not fought anyone as strong as Might Guy. Guy’s 8 inner gates could have 1 shot Hashirama too if given the chance.
Hashirama Senju fought for days against Eternal Mangrkyou Sharingan Madara and when Madara got reanimated, he 1 shot Hashirama and took the little sage chakra Hasurama had left. Madara however got even stronger by becoming the 10 tails Jinjuriki. Then, Might Guy almost killed the Jinchurik version of Madara.
So, at the time of Madara’s declaration on Might Guy, Might Guy was the strongest shinobi and Taijutsu user in the world. Madara doesn’t usually praise his opponents however, he did praise Might Guy because he deserved it and knew that Guy could not defeat him.