Boss/Don -- Michael Corleone (probably the sharpest Don in all mob movies)

Don's personal bodyguard -- Luca Brasi

Underboss -- Paulie Cicero (goodfellas)

Consiglari -- Tom Hagen (extremely smart man)

War-Time Consiglari -- Vito Corleone (He might not lean towards the violent side of things, but hes extremely wise, calms Michael considerably(for example their last talk in GF1) and Tom Hagen is often said not to be a war time consiglari)

Capo -- Tony Soprano
Soldier -- Nicky Santoro (knows how to earn well)
Soldier -- Christopher Multisanti (loyal to Tony)
Soldier -- Paulie Walnuts
Soldier -- Patsy Parisi

Capo -- Pete Clemenza
Soldier -- Benny Fazio(sopranos) (very loyal soldier)
Soldier -- Vincent Mancini (intemidation, good enforcer)
Soldier -- Ralph Siphareto (very good earner, as said by Carmine)
Soldier -- Furio
Soldier -- Al Neri

Capo -- Sonny (Bronx Tale)
Soldier -- Phil Leotardo
Soldier -- Lefty Ruggerio (Donnie Brasco)(very faithful to the omerta)
Soldier -- Richie Aprile
Soldier -- Willy Cicci
Soldier -- Joey Zaza (toned down to a level of a soldier, so that he focuses on earning and not popularity)

I tried to build a family of strong earners, and people that do what they do best, and also the strong factor where personalities colliding in the crews, for example you wouldnt want Richie Aprile or Ralphie in the same crew as tony soprano, or joey zaza with vincent..