God, the deep heartache I feel for Spock Prime. Not only was he alone in the Prime universe (everyone I know, goes away in the end) but he failed in his mission and planets/countless lives were destroyed. (I will let you down, I will make you hurt.)
This vid also utilizes clips from TOS to great effect (I remember everything, what have I become? my sweetest friend) while tying back in with reboot Spock (and you could have it all, my empire of dirt.) This vid perfectly captures that heartache.