This pretty much explains it xdFirst of all I would like to say that I am big fan of Jman ( you can guess that )
But i am also a big of Kakashi , he reminds of his sensei Minato
I don't think Kakashi or guy have surpassed Orochimaru or Jman but maybe Tsunade ( battle ) .
People saying that guy is really strong because he beat the great Hoshigaki Kisame with his gate 7 so he can beat almost everyone. That is wrong ! Kisame's style of fighting is based on soaking up all of the opponents chakra hense making him vulnerable. Guy is the perfect man to beat kisame because he uses only taijutsu so not needing chakra. And even his long range attacks don't need chakra ( Hiru Dora ).
Kakashi has improved alot stamina vise in Part 2 and is very smart but I still think Jman is still stronger ( sage mode etc )
Orochimaru is a genius and is practically unbeatble . His stamina is uncomparable too .
I think Orochimaru and Jman if they were fighting in this war for the allied forces would help alot more than guy and kakashi. They have this Aura , they ARE the Legendary Sannin ! I think they would be more important than the Kages. This is what they are ! You can't compare kakashi or GUy to Oro or Jman , not yet !
I think the reason why Guy and Kakashi are able hold their own against the bijuu is because first of all Naruto, and Sasuke got way way way stronger so Kishi had to boost them up too, Also I would love to see Jiraiya back, I love his fighting style ( It probably won't happen )
P.S. to everyone who says Kamui would ***** up Jiraiya or Orochimaru, or Guy would defeat them with 7th gate is plausible but I still think Jiraiya and Orochimaru could win from K. and G. Because of their Immense Chakra and Stamina
Also Hanzo was defeated because he told his weakpoint to Mifune