Not really, I don't know why but Black Ops never really grew on me. The aesthetic of the maps never really grew on me and the guns felt a little too similar for my tastes. I kind of hated it in the beginning but it did grow on me. As for MW3 I'm on the fence, the whole lag compensation is utter bullshit. Yes its nice that they're trying to help out people with less than optimal latency, but they end up getting shot priority over you, BS.
But I do like the smaller maps on MW3, and I do love me some specialist bonus perks. Being a knife in MW2/Bops made me feel great, but the specialist all perks makes me feel like a freaking demi god.
Also want to note that I didn't buy the map packs for BOps because I bought like the first one, found that damn near everyone on the PC pretty much just played the standard rotation so I didn't bother with the rest, and that lessens my enthusiasm for going back to the BOps