Ok so there are two paths in Mafia Wars Moscow. Which to choose? Vory or Mafiya? Luckily one does not have to maked a choice right away. You are not locked in until the third mastery of the chapter. Up until then you can choose either.
There is alot of misinformation going around as Moscow is so new. Early word on the street is that Vory rewards and paths are more job based while the Mafiya is more fighting based with better weapons and defenses.
Here is what I recommend. First mastery of the side choose Vory. Take notes and pay attention to what you get along the way. Second mastery of the side take Mafiya. Once again take notes and pay attention. Talk to your friends and get their input. Upon the third mastery you will have a much better idea fo which sides suits you best for the long term.
Best of luck in Mafia Wars and feel free to leave any tips or comments.