Man, it goes like this:
Rocky III comes first because Mr T plays Clubber Lang, and he is not to be fucked with.
Then comes Rocky IV... Ivan Drago is a cold mutha fucka for killing Apollo Creed in an exhibition match
Rocky I comes next because it was the original.
Rocky II was ok, but it became lost in a series full of better Rocky films.
Rocky V just plain sucked with Tommy Gunn and his HIV infected ass.