How good/bad is Cutpurse/Silver vs. Silver/Silver on a board with either Witch, Mountebank or Cultist and no villages? Assume you want 2 Witches or Mountebanks and infinitely many Cultists.
Depends a bit on the draws and on the curser I guess. You have a good chance of holding your opponent back from $5 in the second shuffle. That doesn't help much if they started 5/2. And the chance is higher if you are P1.
I think for Mountebank I would take a Cutpurse without much thinking, because they are the unlikeliest of the 3 to collide, also there is more Copper floating around, so it is probably a hit every time throughout the game.
Witches is a bit more difficult because you have more chances to collide, and less chances to hit Copper later with all the Curses flying around. I think I will take Cutpurse over Silver, but would not be very happy with it. Villages might push this more to CP, as there might be an engine (is there trashing around?) on the board. In that case, maybe trashing/engine building before Witch might be possible, esp. if you can delay the opponents Witch with CP.
Cultists without Village is probably Silver/Silver because of the chance of collidion, while with Villages building an engine might actually be easier than in the Witch case, which again would mean CP/Silver or CP/somethingforyourengine.