alternator questions

[j.rigby15r]

So I just finished wiring up my 64 c10. It has a delco remy alternator, the one with a battery post and two slots for wires on the outside. I've seen and read different ways to wire it. Some jump a wire from the side to the battery and have a blue wire to the the horn relay. And some use the blue and a white wire from the sides and the battery to the relay. What's the difference in the two wiring? Which is best and or right?