I meant closest to Avengers. Whatever. He's saying the Iron Man and Thor sequels are more SINGULAR standalone stories. Captain America will be closer to Avengers. And look at all these characters. We have a multiple superhero/vigilante cast.
I also don't see how Cap 2 is going to be Avengers 1.5, at least not any moreso than IM3 and Thor 2, who each have there own supporting heroes/vigilantes.
IM3 has War Machine and the Iron Legion while Thor 2 is going to feature Sif and the Warriors 3. It just so happens that Cap's supporting cast are mostly SHIELD agents.