I know some people have chosen options for their companions they might not agree with down the road or have wanted to pick a different option without having to delete that character and restart. I don't know about everyone, but I have always enjoyed the story in Bioware's games and I believe that a Companion Affection reset button should be implemented. Make the wrong choice? Reset affection. Sure you would have to get the affection all the way back up with your mates, but that's better than sending in tickets, raging, restarting, etc...