So just looking through here, and I have to vote team 1
A. I'm pretty sure that the teleportation plates inside of Elantris are made of metal, and so it's possible Vin could move it (This is assuming she knows what it does.) and keep Raoden from using it.
B. Is shardplate allomantically inert? if it isn't then a duralamin/steel push on Eshonai could stop her long enough for Kal of Hrathen to kill her, and I would guess that anyone not from scadrial would have metal on them, allowing Vin to kill you with all your mercenary gold, and a well placed push could even run Denth through with his own sword. I don't think he could survive that.
It does come down to Raoden and Vin in the end, and so either Raoden hits her with Aon Daa or Aon Ehe. Or she uses allomancy to take him out of the fight, and if she hit him with a powerful soothing (like she did with Straff Venture) it could stun him long enough for her to either push enough coins into him to kill or incapacitate him, or lop off his head with any nearby metal.
So assuming that Raoden doesn't kill off Kal and Hrathen quickly the fight would be difficult but doable. Even without them it would be possible, but more difficult, as she could use electrum to see if she will die, and of course mistborns are very good at running away. A metal plaque such as the teleportation tablet could launch her far out of Raoden's range.
Also are we allowing Vin to use bendalloy? I would guess no, but if she had it then all she would need to do is drop a bubble with 50 coins outside and launch them through Denth's head, and right through Eshonai's visor taking out two members of the opposing team.