Haha i dont know man... i can honestly say goldeneye had me entertained for hours. Thats a very interesting thing to ask... id say they are both cool but goldeneye had me amazed, this is just a slight upgrade to black ops and a continuance of modern warfare storyline.
IMO a true comparison can never be made. Goldeneye was the first shooter that I was able to just sit and play to extremes. My buddies and I just sat there playing vs for what seemed like forever. Lots of nostalgia wrapped up in that game for me.
I am truly enjoying MW3 though. Just haven't had much time to play today. Long days at work lately will make it hard to play as much as I want to.