Anime for me. I like seeing things animated and in color, plus it's interesting to see who is voicing all the characters. Another thing you don't get with manga is OPs and EDs, which can be quite enjoyable.
I still love manga, though I don't read it as often. I like it for the story and the art, which is often better than the anime counterparts. I absolutely hate waiting for new chapters though, which is why I tend to wait for a manga to finish before I start reading it. It's also part of the reason why I prefer to watch anime.