HEARING the line isn't funny; seeing it is. That is why the "KHAN!" in the trailer is chilling, not funny. I still think the TWOK trailer is easily the best of the bunch for Trek ... you have a helluva model shot, an amazing sustained piece of animation, some mysterious imagery of Kirk ... even if I knew nothing about the movie and cared nothing about the notion of Trek, I'd've been hooked (which is exactly how my folks wound up seeing the movie, they were utterly blown away by the trailer, and that was after they both slept through TMP and were convinced trek was dead.)
Kahn's trailer is good, but I still think that the TUC team of teaser and trailer were better at selling the movie.