I disagree.He really didn't have an option.I mean amongst the 7 nominated ,he had to choose 2 .In such a case ,there is no question of backstabbing.You have to make a choice.
true, but he could have nominated ben instead of sabya.
in any case, like u said, its not backstabbing... cos ppl r forgetting that he nominated himself to save sabya in that ring task, when he was not even in the initial nomination list! I wouldnt call that selfish at all, by a long shot