Well, that means 3 townies died. That means 3 mafia and a possible SK floating around and 4-5 townies.
If we No Lynch now:
Good case is 3 townies, an SK, and 2 mafia (SK kills mafia, Mafia kills Townie).
Bad case, it'll be 2 townies, an SK, and 3 mafia (Two townie kills).
Ugly case would be 3 townies, 3 Mafia (SK kills townie, Mafia kills SK).
If we mislynch and there's an SK: We'll be at 3 townies, 1 SK, 3 mafia
Good case is 2 townies, 1 SK, 2 mafia (Sk kills mafia, Mafia kills townie)
Ugly case #1 1 Townie, 1 Sk, 3 mafia (2 townie kills)
Ugly case #2 2 townies, 3 mafia (SK kills townie, mafia kills SK)
If we lynch the SK: It'll be 4 townies, 3 mafia. Mafia wins unless the Vigs hit accurately or the mafiakill is stopped.
If we hit mafia: 4 townies, 1 SK, 2 mafia
Good solution: 3 Townies, 1 SK, 1 mafia
Bad solution: 2 townies, 1 SK, 2 mafia
Ugliest solution: 3 townies, 2 mafia
Of course, if there's no SK, then No lynch is the best.
So, we can either gamble that we'll hit a mafia and not a townie or the SK (though if we hit the SK, we get a last ditch chance with the Vigs), or take a smaller gamble and No lynch and hope the Sk doesn't die (always odd when I say that).
I'm not a big risk taker. We have a good few ways of screwing ourselves by lynching, and one way of failing if we no lynch. So long as the Vigs can avoid making a kill, we'll have the best chance by No Lynching.
So, Unvote. No Lynch