Yes well, actually The scene in Rotk when Elrond is prodding Arwen forward and about to burst into tears quite moving. I think he whispers "Go to him." However, when Aragorn and Arwen are trying to "eat each other"

and Aragorn is shoving his tongue down her throat is just soo cheesy and ...ick. I doubt Tolkien would have approved of elves or men french-kissing in public.
the chessiest line in the WHOLE trilogy?
Legolas: "A Diversion!" DUH!!!
oh and Legolas is not the only captiain obvious, take this line.
Elrond: I looked into you future and I saw death.
Any idiot knows she's gonna die.