I would go with the amnesia if I get relocated to somewhere where no one knows me. My family would also have to think that I am dead. If such is not part of the scenario, then I would rather choose death. They say that memories are not fully lost, though, through amnesia. They are slowly recovered through time. If this is going to be a realistic scenario, then this has to be taken into consideration. So I'd probably take amnesia, because in real life amnesia (unfortunately, I am only capable of experiencing real life... or so my mind thinks), memory recovery is usually a possibility, even likely.
