Some random forum guy I don't know doesn't believe in the validity of my PERSONAL OPINION.
AMAGAWD go to Red Alert!
On a more serious note:
Yes I did have fun in Cata.
Granted, Dragon Soul wasn't Blizzards best raiding Tier, but both Firelands and the T11 raids were well done and proved to be entertaining to me and my 25man raid.
I also very much enjoyed Vashj'ir as a zone and the initial difficulty of the first batch of heroics.