1. Agent Phil Coulson
When you saw Fury at #2, could there be anyone else at #1? Everyone loves Coulson, including The Avengers, who got together because of him. Coulson is a creation of the Marvel Cinematic Universe who has since been added into the mainstream Marvel Comic Universe. He has even appeared in the Ultimate Spider-Man animated series as Peter Parker's school principal. It is unlikely that we will see Coulson as we knew him in the series, but he could be commonly referred to in the series as the greatest agent ever, and or he could be used in flashbacks. Are there any of your favourite S.H.I.E.L.D. members that have been missed?