1.EMS Sasuke
2.BSM Naruto
3.BM Minato
4.Edo Madara
5.EMS Madara w/ kuarma
6.SM Hashirama
7.8th Gate Gai
8.JJ obito( has no access to kamui at all )
9.Biju PS (can't teleport but can use IA and lightening senbon )
10.Ashura avatar (can use TTB and Twin RS)
1. Kakashi wins easily. Kamui warps him away and Sasuke can't even touch him. Sasuke would win too. CT>anything else in Sasuke's arsenal.
2. Kamui is viable if Naruto is in his Avatar, and in small scale combat Kakashi has the advantage since he's easily faster than Naruto with better tools for CQC. (Kamui and Kamui Raikiri) Sasuke locks him in CT too.
3. Minato probably wins. Kakashi is faster, but not so much faster that he'll effortlessly counter Hiraishin. Minato also has clones and Hiraishin which is an almost perfect counter for Hiraishin. Either that or Kakashi can try and outlast via Kamui. For Sasuke Chibaku Tensei says hi. Bijuu Dama can be evaded with Ameno.
4. Madara wins. Susanoo tanks all his offensive jutsu, clones+Flower world handle Kamui. Offensive and defensive. If Sasuke can make a CT anywhere near the size of Madara's then he wins. If not PS kills him.
5. Kakashi would win. Kurama and PS are useless, lower versions of Susanoo can be warped. Clones aren't going to help for long since Madara can't maintain clones and Susanoo indefinitely and he lacks a proper counter to Kamui without Mokuton. Same as Edo Madara for Sasuke.
6. Hashirama wins the same way Madara wins. Same as Madara, or Sasuke can probably just teleport to Hashirama and skewer him with Chidori since RSM Naruto (>>Hashirama in speed) can barely react.
7. Kakashi would win simply because Gai can't touch him nor does Gai possess the speed necessary to outright blitz him. Sasuke easily kills him with Ameno or Chibaku Tensei.
8. Kamui is evaded after being sensed, engaging Obito in CQC would result in him being pushed back since Obito is easily faster than he is. So Obito either kills him with the Gudo Dama and his own speed and reactions when Kakashi becomes tangible, or he outlasts him. Chibaku Tensei. If he can make one the size of Madara's Obito isn't going to escape nor will he survive it if it hits him directly.
9&10: Not sure if srs. Avatars don't have the versatility to handle Kamui without their users. Sasuke gets raped zero difficulty.