Terraneaux wrote...
Samara's probably a better person as she at least takes some kind of responsibility for her actions with regard to raising her daughter and such. Morinth doesn't, she blames her behavior on the universe, basically. On the other hand, I think that Samara is the more dangerous of the two to keep alive: we know that Morinth can't mind control Shep, so she's a bit toothless in that respect, and she wants to save the galaxy just like the rest of the crew, and she's not willing to risk the mission for the sake of getting it on with Shepard, for instance. I have the feeling that Samara might endanger the mission if it meant following her code, she's a little nuts like that.
Uh, no. Her code requires that she follow your orders until her service to you is over, which is once the mission is completed. Sure, there is a non-zero probability that she might go back on her word and break that oath, but the probability is
really low. Basically, you have as absolute a guarantee as you're going to have with
any sentient being that she will be utterly loyal, at least until the moment the mission is complete.
Morinth, on the other hand, knows nothing about a mission, nothing about the Collectors, and makes the offer to help you in a moment of extreme duress (where she knows she will be killed if she doesn't receive your help). From all evidence and personal experience you've had with her, she's not particularly trustworthy. There's every chance that she'll renege on her offer to help or run away or try to kill you the moment Samara is dead and she thinks she has a chance to escape. She doesn't, but Shepard doesn't have that knowledge to base the decision on; if we're talking in-character, we can't use anything we learn about Morinth
after the choice in order to make it, we can only use the knowledge Shepard has at the moment of choosing.