Kakashi decided to train in the Chunin Exams arc after encountering Kabuto. How much stronger did he get? Who do you think he could beat that he couldn't before?
Compared to these:
The only thing FKS Kakashi does that could warrant him being above PA Kakashi is being able to turn his 3-Tomoe Sharingan into an MS and use Kamui to send away 2 Susanoo Arrows after they were already shot.
Sasuke's Susanoo Arrows are consistently portrayed to be extremely fast, as Danzo couldn't weave the signs for Izanagi before it reached him, and Kakashi said he would've been done in if it wasn't for Kamui.
Do you think PA Kakashi can do the same feat?
WA Sai blitzes Edo Deidara, while Hebi Sasuke's Shunshin failed to blitz Deidara.
People will say Edos are weaker, but I'm pretty sure that only refers to people on the same level as Edo Tobirama or Minato, as Edo Mu's Jinton is stated to be as powerful as ever by Onoki.
Edo Hiruzen could also make 5 shadow clones and have them use 5 large elemental blasts with no strain, while making just 2 against Orochimaru had Enma and the Anbu worried. Orochimaru thought it would shorten Hiruzen's life.