That is not a class, Classes are Student, Genin, Chunin, Jonin, Kage. Sennin are giving to the most talented and usually kage level ninjas, S rank is a rank given to criminals who are as strong as if not stronger than jonin but are USUALLY not as strong as Hokage for example i think the Orochimaru could have been considered an S rank ninja and he was Kage Level (sarutobi said he was FTW) but like someone rior said Criminals like Hidan and Zabuza were S ranked ninja but i doubt anyone would say that they are Kage level. Since that is cleared. How do you guys think Kakashi is Kage leveled ninja? He is curently the only person in the village besides Guy that could be nominated for kage not becuase of power but becuase of experience and knowledge. Usually when someone thinks of a KAge level ninja they think of an Extremely Strong Ninja. If i were to compare kakashi to any other Hoakge i would rate him the Weakest even to danzo who proved to be pretty strong during his fight with sasuke. But i would say that he has about as much experience in combat as sarutobi, the fourth , and tsunade. Kakashi when compared to the other available ninjas who could possibly be put into kage position is reletively strong but when compared to other hokage he is pretty weak. Hashirama was the creator of the Leaf and rival to Madara (who we can see is an extremely strong ninja, and defeated him), Tobirama was the creator of Edo and had S/T movement techniques along with the ability to you High level water techniques with only the water available in the air, Sarutobi was as stated by Jariya the most talented of the Hokage during his reign and was called "The Professor", i believed that most of the other villages had great respect for him and he didnt have any special powers of abilities besides his genious (1st could use wood, 2nd could use S/T and edo, 4th had S/T and sealing, 5th is a master in medial ninjustus and healing), 4th hokage was able to go just about anywere he wanted with the use of seals and shuriken and was also able to take the nine tail fox solo for a little while and then sealed it, Tusnade is one of the sannin a master in medical ninjustu and is well respected by other villages, Danzou (al though not a hokage) was an evil villan who took the dna of one family and the eyes of anoher family to use one of the strongest and hardest genjutsu ever. While Kakashi is strong i dont think he would fair well when compared to OTHER hokage, but whne ptited against peers he is a shining star, he is still young tho so give him a couple more years and he'll be able to trounse the other hokage.