I like Manga lebih because it tells anda the whole story, and at the end of the hari it's usually the only medium anda can rely on to be completely "canon" (unless of course it was a novel series atau something similar first). Also when anda read instead of watch, anda can control the pace at which anda enjoy the story.
It varies. It's awesome to see your fave characters off the page and animated, but Anime also often have to leave out details atau completely alter storylines that make it worse. If I have a Manga I love, I want nothing lebih than to see it animated.