I decided to install a separate equipment grounding connector in EMT raceway and bond everything to it .In the event of a ground fault which path will the fault take? The EMT or the EGC. I understand that electricity seeks all available paths back to it?s source. Thanks for your help.
You are right that the current will divide over all possible paths, taking it as a parallel circuit. The way the current divides will depend on the total resistance of each path.
If the wire and the raceway are not bonded at intermediate boxes, then if the wire resistance is .1 ohm and the raceway resistance is .2 ohm, the wire will carry twice as much current as the raceway.
If you bond at each box the EGC goes through, you have a more complicated problem if the ratio between wire impedance and raceway impedance is different for different segments for some reason. But the overall principle remains the same: the current will divide so that the voltage drop on both paths is equal.