I would also say B, verging on A though.
With MM, I would read the clues and have a bash at some of the answers, but now I find I am going straight into Encarta, then the Internet, and, of course, the AB.
Yesterday's took me 1 and a half hours, but that was because I didn't start it till late afternoon, when lots of the questions had been posted on the AB. Then only had a few to actually look up myself. I don't think anyone could do this crossword WITHOUT the aid of the Internet, which is a shame. I enjoy doing the research for it, but others might not. Enjoy the rest of this lovely sunny weekend!