The Saiyan race from the famous animated series and manga Dragon Ball consists of warriors who excel in combat, often relying on their fighting prowess rather than strategy. They are characterized by their fiery personalities and their dedication to training and fighting, showing little concern for love and relationships.
For example, Goku and Vegeta focus their lives solely on fighting. However, other Saiyans like Broly, Goten, and Trunks are not much different. Only Gohan stands out; he is more mature, even though he can sometimes make foolish decisions.
However, having a lower usage of cunning does not mean that a Saiyan lacks intelligence. Saiyans are believed to possess high intelligence, but it is primarily applied in battle. They can learn fighting techniques after witnessing them just once. Additionally, they can analyze situations and devise strategies to outsmart their opponents.
Goku: The Intelligent Saiyan
Goku grew up alone in the wilderness, which limited his education. Even after stepping out into the world, this aspect of him did not improve.

On the contrary, his fighting ability is nearly unmatched, making him one of the strongest warriors of humanity.
Vegeta: A Master Strategist
Vegeta is much more decisive than Goku. He excels at planning, as evidenced during his quest for the Dragon Balls. His strategic prowess was particularly evident during the events on Namek.

In battle, Vegeta is ruthless and does not show mercy to his opponents. However, he is very protective and is always ready to fight at his peak. After a turning point in his life, Vegeta learned to soften his demeanor, embracing peace more and showing interest in his family.
Gohan: The Smartest Saiyan
The smartest Saiyan is Gohan. He is a hybrid between a Saiyan and a human. Looking at his academic performance, if Goku had no concept of “studies,” Gohan was often pressured by Chi-Chi to study hard and eventually became a scholar. Due to his upbringing, Gohan is the only Saiyan with a stable job.

However, because Gohan possesses the traits of a human, he often lacks the fighting spirit typical of Saiyans. At times, Gohan prioritizes his studies over training, using all his mental energy to become a scholar. After many experiences, he realizes he must be stronger to protect everyone, so he returns to training with Piccolo.