I am familiar with Obi-Wan, but not Kakashi.
In AP, Obi-Wan scales to 170 Megatons.
In Skill, Obi-Wan is considered one of the greatest heroes of the Clone Wars. I don't know Kakashi, so I'll just list Kenobi's feats.
He, like all other Jedi, was raised and trained from an incredibly young age (Anakin at around 6-7 years old was considered to old to begin Jedi training). His training in his youth would've consisted of things such as blocking blaster shots with a lightsaber while blindfolded.
As a mere Padawan (one of the earliest stages of Jedi training) he helped his master engage with Darth Maul, a proud warrior trained in combat by both the Zabrak people and Darth Sidious. When Maul defeated his master, Obi Wan fought Maul evenly, cut his weapon in half, and even forced him to resort to his telekinesis to beat.
Oni Wan served as a front line general during the Clone Wars, regularly engaging Sith Assassin Asajj Ventress and legendary Jedi killer General Grevious, the later of whom is noted for mastering all forms of lightsaber combat and facing opponents like Jedi Counsel Master Kit Fisto.
Fought off and defeated both Darth Maul and Savage Opress, forcing them to retreat. Admittedly, this only after losing to him several times prior.
Has added his apprentice Anakin Skywalker in battling Count Dooku on two separate occasions. Notably, Dooku was responsible for training both Grevious and Ventress and was recognized as the third best swordsman in the Jedi Order. Also notably, Dooku was forced to use telekinesis to incapacitate Kenobi during their second duel so he could focus on Anakin.
Two instances of his tactical ability include slowing General Grievous's onslaught by parrying his wrists rather than his blades in their final duel and successfully leading a fallen Anakin to an area where he would have the tactical higher ground, battling his former apprentice for several minutes even as their battleground collapsed into lava.
Several years after the Clone Wars and after having not practiced for ages, he rematched Darth Maul one final time and defeated him in only three moves. Notably, he lured Maul into using the same tactic Maul used to defeat Qui Gon Jinn, taking the same fighting stance as the late Jedi Master, and then exploited the opening he knew Maul would give him.
Now, I'm going to state that telekinesis is a big point in Kenobi's davor here. Not because he can rag doll, lifting strength says no to that, but because it'll allow him to effectively no sell any projectiles that come his way and even send them back.
