Hmmm. I guess I tend to like more modern animes or ones that are drawn in a more modern style. Animations that are HD and smooth are beautiful to me and usually serve to elevate my whole experience. Subjectively, I am not too into older styles like Sailor Moon or Inuyasha, but those that I watched during childhood are still enjoyable to me just because of the nostalgia factor. I still love YuGiOh for example. Idk, I guess the bottom line for me is that if the art is attractive to me, I tend to watch it but am open to watching older ones that are tried and true.