if there are north and south poles existing in the universe(north is positive and south is negative)...?

Question

...both poles try to attract things,what will be attracted most,the earth or moon?

Answer 1

The attractive force of the "magnet earth" is much smaller than it's gravitational force. In fact it's negligibly small. Proof: put an iron object on the table, like a knife. Despite it being much more closer to the earth than the moon, it will not budge.

Answer 2

The Moon is affected each Day by the Poles or as one would say, the Earths Gravitational Pull. Good Question!!!

Answer 3

Gravity dominates intergalactic forces. This is because gravity doesn't have a negative (unless you count dark energy). I don't think your "what if" would change anything except maybe the northern lights etc.