Oro was sick,
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and he was armless. Not to mention he also had to worry about Jiraiya as well. Don't you remember Kabuto managed to hold his own? Don't tell me you think part 1 Kabuto can beat current Temari. Also don't forget that armless Oro lacks the jutsus that can kill/overwhelm Tsunade whereas Temari has plenty. Not saying Temari beats armless Oro because he can reattach body parts and summon all sorts of snakes for wide area of effect attacks.
But it won't. Katsuyu can still be sliced effortlessly by attacks even if it can't be killed by them. The attacks will rip through Katsuyu and hit Tsunade, slicing her into three parts from top to bottom.
Bare in mind, Tsunade can't blitz current Temari nor can she tank her fuuton unless she wants to get sliced in half of three pieces. Katsuyu acid is blown away. If Tsunade tries rushing as fast as she can move, she will only get hit harder. Also creation rebirth, unlike Byakugou, doesn't activate automatically. Therefore, Tsunade needs to form hand seals
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in order to activate the technique. During this time, Temari can simply move back and retreat creating a larger gap between them. Furthermore, Tsunade will need to dodge, retreat or slow down whereas Temari can simply keep on moving backwards to her comfort zone.
Temari is more than capable of slicing Tsunade with
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to such an extent that her head and upper body, middle and lower body, and legs will all become detached. Tsunade may or may not die immediately, but she can't fight if her body is cut into bits and pieces.
Alternatively,
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could slice Tsunade in half. That slash of wind created by Kamatari can slice humans in half. The reason why Tayuya wasn't was because she was killed by the incoming trees and then fell down while being crushed underneath them. For this reason, she never even got hit by the attack in the first place. Tsunade has no cover in destroyed Konoha so this is why I doubt she can avoid these attacks. Kamatari's wind slash is called,
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so it is definitely capable of slicing humans into two pieces. Alternatively, she also has access to
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no jutsu which was used alongside several other wind users to counter an attack from the Juubi. Of course Temari wouldn't be able to perform that attack on the level it was performed in the manga but even a fodder Anbu could perform it against Pain's dogs so I believe Temari alone can perform a stronger version of that said attack.
The reason why Tsunade can't blitz Temari is because she managed to
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the people in her division to retreat while the 3rd Raikage went on a rampage. She wasn't that far from the 3rd Raikage when she
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so retreating from Tsunade is no problem. Sure Temari did have help holding her own against the 3rd Raikage by two other fan users and some doton users, but against part 1 Tsunade, Temari doesn't need all that fire power or distractions.
Temari wins all three scenarios. I guess she wins the first scenario with high difficulty, the 2nd with mid difficulty and the 3rd with low difficulty.
Not saying Temari is stronger than part 1 Tsunade but she is a bad match up for her.