I like manga thêm because it tells bạn the whole story, and at the end of the ngày it's usually the only medium bạn can rely on to be completely "canon" (unless of course it was a novel series hoặc something similar first). Also when bạn read instead of watch, bạn can control the pace at which bạn 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 hoặc completely alter storylines that make it worse. If I have a manga I love, I want nothing thêm than to see it animated.