Setsuka's match up (revised, more definite opinions and less 7-3) :
Algol: You better find it yourselves, he is banned in France so I don't have an advice.
Amy: 6/4
The Apprentice: Same as Algol
Astaroth: 6/4
Cassandra: 6/4
Cervantes: 6/4
Hilde: 4/6 or 5/5
Ivy: 4/6 or 5/5
Kilik: 5/5 or 6/4 I will detail more just after the match up chart. Now that I have good Kilik experience, I am pretty sure it is at least 5/5.
Lizardman: 6/4
Maxi: 7/3
Mitsu: 6/4
Nightmare: 6/4
Raphael: 6/4
Rock: 7/3
Seong Mi-na: 7/3
Siegfried: 6/4
Sophitia: 6/4
Taki: 6/4
Talim: 6/4
Tira: 6/4
Vader: Don't have an opinion
Voldo: 4-6 or 5-5
Xianghua: 6/4
Yoda: Don't have an opinion
Yoshimitsu: 6/4
Yun-seong: 6/4
Zasalamel: 6/4
I can detail if you want. I am pretty sure the above is true.
Now let's detail Kilik vs Setsu :
Wing_Zero said for Voldo :
Voldo punishes Asura HARD. He also has great anti Asura/wsB; I can't possibly see this matchup being in Kilik's favor. SU is right: 5/5
The same can be said about Setsuka.
Let's start with Asura :
A non JF Asura blocked = 86 dmg, a stepped asura (easier than you think) is at the very least 60 dmg, and you still have the autoGI option on the second hit when you block the first.
Besides, Setsuka has a very good anti Asura game with very good staple moves like 3K, 214K, 214A, 8K,... and providing you delay correctly some of your mids (or using slow lows too, I had good results using 11A against Asura, the TJ is too fast for the low, and he ends up getting CHed in the second hit) Asura isn't that much of a problem. Kilik doesn't limit your gameplay like he does for some characters.
Now for WS B :
WS B is still a very good move, but Setsuka clearly has the tools to kill it.
A stepped WS B = easy 86 dmg, the push back isn't a problem since you have good range, and you have the tools to kill it with staple moves and powerfull mids : 214B, 3K/214K (up close), umbrella (dangerous), A+K B (very good move against Kilik since it takes away a lot of options of his WS game, and if he blocks he can't punish much), 33B, 4A (when he uses WS B at his max range, gives you a free BB) ...
Besides, the character doesn't fear his zoning game, has better throws than Kilik, won't get punished much by Kilik apart from doing very dangerous stuff (random umbrellas/agB/etc...) while Setsu WILL punish every unsafe stuff you'll do.
Just like against Voldo you'll want to step her moves (which can be hard), in order to get dmg, you'll want to use A+B but if you get it blocked, it's a free punition.
No... I can't see the match being in Kilik's favor. 5/5 seems more reasonable and 6/4 in Setsuka's favor could be realistic.