Just Battlefield Bad Company 2. Not a COD gamer anymore. But for this poll, I'd say:
1. Story wise goes to COD Ghosts
2. Multilayer goes to COD World At War (simple and basic, just like COD4 MW was)
3. Survival wise Any treyarch made COD game that has Zombies in them. Not COD AW had, that was horrible but nice change of pace though
BLOPS 1 was so balanced. Qs was actually challenging, all assault rifles were good. Several SMG's were competitive. Pro perks were great but not op. Kill streaks actually required kills.
Such a good game.