Totally the manga.
I mean in the first anime Ed gave up his whole body for Al, so that way Al could get his body back. But in the process, he left Al all alone.
However, in the manga Ed refused to give up his body for Al, not wanting him to feel the same loneliness that Ed had felt after the failed transmutation of their mother. Not only that, but he didn't want to go against his and Al's own wishes of getting others involved and using a Philosopher's Stone. But, Ed didn't give up, he kept thinking. He ended up giving up his gate so that he could no longer do alchemy, but he got Al's body back in the process.
Roy x Riza - Edward x Winry - Ling x Lan Fan - Alphonse x Mei - Havoc x Rebecca