I think Sonny shouldn't have been killed,if he hadn't it could have been good when vito handed control of the family to Michael,I think Sonny wouldn't have been happy and would have spoken out against Vito(like he did during the Sollozo meeting) but Vito would have talked him round,I also think Tessio would have tried to get Sonny on side to whack Michael but then Sonny would have whacked Tessio.what do you guys think?