Claude
Escapes Liberty City because most gangs are against him and there are far too many to fight at once, so he goes into hiding and lives off the money he made working for people in the city.
Tommy Vercetti
After killing Sonny Forelli, the Forelli's fail to take action against him, and he lives to control Vice City.
Carl Johnson
Once Tenpenny is dead and the Ballas and Vagos are both completely annihilated during the riots and their territories are all taken by the GSF, CJ continues to control his many business's throughout the state of San Andreas, he is rich, and the GSF now rule Los Santos and there are no rival gangs to oppose them, Salvatore and the Leones were unable to get revenge on him for robbing their casino, because Carl never actually told them he lived in Los Santos. So he is the king of San Andreas and is safe.
Toni Cipriani
Will Possibly be the new Leone leader after Salvatore is killed by Claude.
Victor Vance
Was killed in the first VC cutscene.