Before I counter arguments, I'm just going to say if we are only going by manga feats, then K11 wins because the swordsmen barely showed what they could do. It's obviously they could do A LOT more.
Sakura won't be able to clear the mist because punching the ground would risk injuring her team mates, and Sakura wouldn't take that high of a chance to do so.
If Chouji uses Expansion Jutsu and grows huge, Mangetsu, a highly skilled ninja who is capable of wielding all Seven Swords will counter Chouji with Demon Fish. Demon Fish is that technique Suigetsu used to grow as big as the 8 tails. If Suigetsu used it, Mangetsu more than likely can as well. So, with Mangetsu the size of Chouji and with the Hydrification technique, Chouji will not be able to land a hit on him. However, Mangetsu having Hiramekarei will be able to land a hit on Chouji and kill him.
So, the mist will be up and Neji, Hinata, Shino, and possibly Kiba will be able to avoid Silent Killing. Can't Kiba only smell if he has the scent of his opponent? If he can't then he's ****ed.
Sakura will summon Katsuyu and probably everybody will get on her head. However, Mangetsu will still be the size of Katsuyu and since he's made of water it'll make Katsuyu's acid less acidic, rendering it almost powerless. Zabuza could use Water Dragon Jutsu and probably the other swordsmen know this jutsu as well or other large scale Suiton that can atack long range and ambush Katsuyu's head where everybody will be and knock them down in the mist. That's when Ino, Sakura, Lee(when against the swordsmen he didn't even use gates so don't say he will here), Tenten, Shino, Shikamaru and Kiba will get beaten out by Silent Killing in the mist. Shino is absolute shit at Taijutsu, only having a 1.5/5 so he will get stomped in Kenjutsu. Chouji is already defeated. Kiba would not be able to counter the Kenjutsu or he will fall to clone feints. That leaves Hinata and Neji and they simply can't counter the swordsmen being out numbered.
I mean come on, you think 9 Chuunin and a mid jounin can beat 7 high jounin-S-rank level ninja??? The swordsmen have better feats and probably large scale Suiton. Their swords pose a problem and their silent killing is hard to counter.
Swordsmen take this mid diff