If it's between Alistair and Hawke, it's a fairly easy decision for me. I will save Alistair.
If it's between Stroud and Hawke, it's also a fairly easy decision for me. I will save Hawke.
But between Loghain and Hawke? That's a bit more rough. Both are men that made certain mistakes (but Loghain's were malicious). LIstening to the Nightmare Demon verbally mashing both of them made me feel their pain. Loghain has doubted himself since he was (partially) proven wrong and became a Grey Warden, while Hawke doubts most of his major decisions during the events of Dragon Age 2. I chose Hawke most of the time, but it's nice to see Loghain live.
In any case, listening to Loghain defend the Grey Wardens made me wonder if he had a change of heart during his time with the Grey Wardens. He never liked them, but seemed to have to adopted their position as the years went on. On separated but related note, Alistair, if he stays with the Wardens, seems to have become more jaded and cynical during his time with the Wardens, even if he never states outright.