Video A had far more consistent editing from start to finish, and the source was way more interesting. The lyrical sync at the beginning of Video B was juvenile at best and not at all stimulating. The ending was excellent however, and really demonstrated the full potential of whoever edited it. If I have to look for the better editor between these two, it'd be the editor of Video B since their high point was better than anything the editor of Video A put out.
So, my vote goes towards Video B, despite its troublesome inconsistencies.
Edit: Oh, the vote's over. Go figure.