Real and Milan above all, due to the ref favor.
Pool + Bayern in CL too, for the same reason.
And in the late years, Barca + Chelsea for destroying football as we knew it.
After Barca spectacle is the only thing it matters and defenders that can defend are now absolete and underestimated and after Chelsea everyone can buy their success without respect to tradition.
I would mention Inter too, for what they did to us and the Italian calculate overall, but what happened was not just them, the united league of our enemies made it happen and they just happened to profit the most of it, but it did start long before them, and it wouldn't happen without the support they got to take us down, so they have returned to their natural place, an insignificant pathetic group of clowns...
PS: olympiakos too, for the same obvious reasons...