It's kind of tough to make a decision on this one, but I'll have to go with Anniversary for me. H2 with the incredible cut scenes was just so well done and CE's cut scenes were certainly improved by better and more detailed graphics. But on the other side of the table is the fact that the CE anniversary graphics in game play deviate kinda heavily from the original look and feel of the original CE. As an example, the level 343 Guilty Spark is much brighter than the foggy and mysterious feel of the original graphics.
While nostalgia may drive people to prefer classic graphics, there are some more concrete reasons to prefer classic over anniversary, especially in the case of CE.
Happy coming through will solid points, again!
Classic visuals will always be an OG favourite... however, as a personal preference, I have to agree on Anniversary graphics. Aesthetically superior and allows the player to immerse a little deeper in the gaming experience. Sometimes you need to forget you're holding your xbox controller and remember you're two shots away from reloading the pistol in your right hand. Anniversary visuals for me.