If in 1998 the Big Putsy Bompensiero had decided to don't become a rat:
he would have done twenty years for trafficking heroin
or would have make arrest Jackie Aprile, Sr. and maybe Tony and Junior.

Richie Aprile would have rebelled and created his own faction, maybe with Gismonte,Bevilacqua,Patsy Parisi as enforcers because Tony order to whack his twin.

Because Ralh Cifaretto was a good earner,Johnny Sack would allow him to change family.

Furio Giunta would have pushed Tony against the helix of the helicopter and would have run away with Carmela.

Christopher would flip and betray Tony and his family to save Adriana and sell his autobiography as Leonetti did.

The Lupertazzis wouldn't deal with such respect with the Sopranos, saw how the Gambinos treated the DeCavalcantes.

Tony Soprano even if it's a boss, wouldn't have beaten Phil Leotardo, tought soldier released after 20 years in prison, Johnny Sack that was trigger happy, couldn't have asked for permission but he is immediately killed Tony Blundetto and will start a a war if Tony does not had handed it to him, because a boss of the powerful 5 families can't do disrespect by a boss of Jersey.

If for idea in 2006 was another mob war breaks out, the Lupertazzi have ordered, to their Jersey faction, to whack Tony Soprano and all his loyalists, provided that Tony had not already been killed by one of his men to take his place of boss.

even if Leotardo was a bloodthirsty madman, and had 200 soldiers (perhaps less) against 60 soldiers (maybe) of The Sopranos, he wouldn't go running around so quiet, for the New Jersey.

The FBI in the reality as soon as the war started he was put under surveillance and arrested anyone that had pulled the trigger, resulting in a big arrest against Lupertazzi and Soprano, and their near-extinction of the seconds.

if I have done something wrong, free to answer back.