Neither. Both would kill me. Either I'd be useless to them and get killed for that, or I'd be useful to them for a short period of time, like Ernst Rohm or some shit, and then get killed to improve the image of the party, or that paranoid faggot Stalin would decide I was a threat to him and kill me. Either way I'd end up dead.
So either choice I had, I'd either shoot the fucker or more likely run away.