I've been replaying Absolution a bit lately and was surprised at just how much dialogue in the new game is lifted straight from there. Exact same lines with the same voice actors. I only ever completed Absolution once so didn't really recall any of that when playing the new game before (the copied mechanics / animations were a lot more obvious though).
Still haven't played enough of Absolution to really compare the two dialogue systems but I think the new one at least has a few extra scenarios accounted for. The "quotes" I enjoy are when they react to your play-style, like commenting on how you're getting perfect headshots or acting incredulous when you change disguises right in front of them. Although my favourite line might be one of the simplest, when they spot you out of the corner of their eye but aren't sure.
Just a soft, "Nooo....."