Top mafia in Mafia Wars

Answer 1

The Top Mafia Gospel According to Zynga:

Assign your best mafia members to positions within your mafia. Each position has a unique bonus which can be greater depending on who gets promoted to that position.

Mastermind: Choose a member with many jobs completed to promote to Mastermind to get more experience points from doing jobs. Your Mastermind gains a small chance of gaining 50% more experience when performing jobs.

Wheelman: Choose a member with the Fearless character type and a high level to promote to Wheelman to get a reduced energy cost for jobs. Your Wheelman gains a small chance to perform jobs for no energy.

Buttonman: Choose a member with the Maniac character type and a high level to promote to Button Man to get an Attack bonus Your Button Man gains a small chance to always win fights they initiate.

Bodyguard: Choose a member with many fights won to promote to Bodyguard to get a Defense bonus. Your Bodyguard gains a small chance to always win fights when they are attacked.

Safecracker: Choose a member with many successful heists to promote to Safecracker to get more money from fighting and robbing. Your Safecracker gains a small chance to gain double the money when fighting or robbing.

Bagman: Choose a member with the Mogul character type and a high level to promote to Bagman to get more money from jobs. Your Bagman gains a small chance to gain double the money when performing jobs.