It's a close call, but I picked GF1. Vito, Sonny, Clemenza.....their absences in GF2 are missed. I like Michael's tranformation from nice college boy, seen in flash back scene frolicking like a school boy with Kay in the hotel room, to the ruthless killer at the end. Just look at Michael's expressions from the beginning, to the end where he coldly walks off with an expressionless face after having Carlo whacked.