EfaBlack Ops 1 sits just behind CoD4 as the most balanced CoD games and are my top 2 (blops 1 being my favorite only because I missed CoD4 in its prime.)
Better guns and no target finder shit puts MW3 ahead of Black Ops 2 for me. Also Dome, Hardhat and Mission >>>> any Blops 2 map.
MW2 was too unbalanced and dumb.