I have a pair of Cubs in my 2nd system, and I used to have the 802D's, but only for a few months. The B&W's can do a little more, but I still prefer the CUBs. I wouldn't use the MF amp with either one of those speakers, though. Not a good match.
If you want to save yourself some money, don't buy either one of those speakers. They're just not worth it. In my main system, I have a pair of Vandersteen Model 2's (current version), and they sound better than both of those speakers. The only thing with them, though, is that you have to set them up right and matched to electronics that are capable of getting the best out of them. I wouldn't use the MF with them either.
If you want to save yourself some money, don't buy either one of those speakers. They're just not worth it. In my main system, I have a pair of Vandersteen Model 2's (current version), and they sound better than both of those speakers. The only thing with them, though, is that you have to set them up right and matched to electronics that are capable of getting the best out of them. I wouldn't use the MF with them either.