Ghost balanced? Lol The AR class dominates with no competition from the marksman rifles/lmgs or SMGs.
Mine is BO2, the game runs really smooth now after the patches. The maps were really colorful and I really enjoyed them. Scorestreaks were also great, I finally get rewarded for playing the objective and doing other small things instead of just killing. Also no lethal support streaks was nice. Lastly I felt the gun balance was pretty good, I was able to have great gameplay with everything but sniper rifles(they were broken with the wii remote).
MW3 for me. I loved the close maps and the constant action. Made every second feel like something epic could happen at any time. I loved playing Team Defender. Wish they would bring that back. Just a great concept.
Team defender was literally the only part of MW3 that I like that isn't in other CODs. I really hope they bring it back.
BO1. the balance was perfect and the connectivity (outside of the host lag which Wii U no longer has) was perfect. MW3 was a close second for the connectivity, but not the weapons balance. If they could somehow take the connectivity from BO1 and place it into the present COD games, I think there would be a lot less complaining, and the game would be a lot more fun.