Upgrading to electronic ignition help

Good evening everyone,

This summer I am hoping to upgrade my current ignition system from single points to the factory electronic ignition with the rev-n-nator box. Now my question is the preferred or recommended factory style distributor... I can get a remanufactured or there are a lot of good reviews of the firecore distributor. Is there much of a difference between these two dizzys? Any help or experience would be appreciated!
Thanks
Kyle