Simple question, much polemic. My vote: I prefer models, but I concede that the saucer of the Enterprise in the 2009 movie was impressive. Problem there was the LENS FLARES!!! and digital dirty lens (even worse choice than the flares IMO). In ST:ID I didn't like the shaky camera. In the 1980s the SFX motion control cameras had to be in rails, having it shake on purpose was impossible, and by accident meant a ruined shot. So we got beautiful images. Now with CGI they can shake, but what did the President say? "just because we can do a thing desn't mean we should".