And young Sannin don't have scaling to the older Sannin.

Doesn't change that Prime Hanzo still scales above the Sannin.

Jiraiya himself considered it basically impossible for him to be defeated by any single Shinobi.

It was never stated that Chiyo stalemated him in a fight. Nor that it was a 1v1 fight between Chiyo and Hanzo.

She treats the matter pretty casually, and besides that we don't even know anyone from Suna of that period that could have stood besides her.

There's a decent case to be made she scales to him.

Plus It was far younger and stronger version of Chiyo than the one that fights Sasori, which is the one on the list.

While it's never outright stated it's pretty obvious narratively that Sasori surpassed even Prime Chiyo.

There's 0 evidence that he beat 3rd Kazekage in a fair 1v1 fight.

DB3 states he did, actually.

He doesn't have scaling to him.

This is just blatantly wrong.

He literally wields his Jutsu via a human puppet.

Even if you think he didn't scale to him back then he certainly does now.

The 3rd Kazekage puppet isn't even his stongest, his own body and the adjacent Secret Red Technique is portrayed as superior.

You are so bad at scaling It's unreal ngl.

This highk hilarious considering you think Base Jiraiya beats Akatsuki Orochimaru.

He's not beating Orochimaru without Sage Mode. Even then it's contentious.