This i actually sort of a hard question. I voted for the gf, but in retrospect, tt wouldnt be a split-second choice. Although obviously human interaction is more important than anything, a computer offers so much chance to learn/play.. lol
In the end though, a person is a better choice. I like the guy who said a wife would be better suited to the role than just a gf. After all, you are going to be together for a lonngg time.