Hmmm, well thats hard to tell, ibe only played nacht der untoten on waw, well that map and verruckt, and well, ive played all the maps on black ops, but I am going to get waw soon, and i must say that waw seems way better then bo, as long as I have all the maps for it that is. But for now im going for Black ops.
I only have Black OPS. But I wish there were more maps because there's only two descent maps that you don't have to buy. But I like the guns in black ops and the maps are pretty good. My favorite is "Five".