This might be the most moronic thread ever (no offense to OP).You need to re-read the manga, or at least work on your reading comprehension if you honestly believe that about the legendary sannin .I know that everything is relative, and a lot of the ranking is subjective, but you can’t ignore facts in the manga. They are all kage level fighters.
Edit: You said they were Kage level fighters yet only one has been shown in the manga to beat an A-rank to S-rank ninja, and that ninja wasn't even his prime when he beat him
Orochimaru alone defeated two sitting kages, and one of them was considered the strongest of them all, Hiruzen Sarutobi. Akatsuki and the leaf were both after him yet he somehow managed to stay alive, and not only that but he experimented on pretty much anything and everybody. Even Tobi was surprised how much he truly knew-the guy decoded the secret tablet without any doujutsu. He rivaled Hiruzen in ninjutsu and was actually having fun playing with the four tailed fox (in a weakened body).You think Sasuke joined him for fun? All the five villages were scared shitless of the mere possibility of facing him, and Kakashi showed more fear for him than he did for Itachi himself.
Jiraiya taught two of the strongest characters in Nagato and Minato. Kisame and Itachi decided both to not fight him, because he was in league of his own. You might say that Itachi was only saying that because of his “loyalty to the leaf”, even though you can debate it, just look at the order he gave to Kisame (regarding the leaf), but what about Kisame? No excuses there, he openly admitted that the legendary swordsmen (including himself) were nothing compared to the legendary sannin(fact). Jiraiya turned down the most prestige’s job title around, as the hokage, down twice. He was also one of the few sages, which is a great accomplishment, and he disposed of Konan in two seconds.
Tsunade was credited the 2nd shinobi war, with her incredible medical abilities, as well, as her intelligence in forming the evolutionary three men cells. She combated (and was superior) to the legendary Chiyo, who was famous for her poisons. She is also the reigning Hokage, and in that position, she recently saved the leaf from total destruction (by her enormous chakra reserves) after the mighty Pain visited. She stood her ground and took a shinra tensei like a boss.
Collectively they are known as the greatest team ever. Whether you like them or not - don’t disregard facts.
Btw, if you’re a troll don’t bother responding.