[vujade]

from what I have seen, some are running wide wheels on stock width front beams & using wider fenders & others are narrowing the front beams & using stock fenders.

It is all preference. What do you like better?
Do you prefer the wider more aggressive look?
Or a more stock appearance in the front?

this may also help you decide:
narrowing your front beam & using stock fenders will keep the normal turning radius that your car was designed with.

using the stock width beam with wider fenders will change your turing radius.