I hate to say it IOWA, but it depends. If I could be certain that they were installed exactly the same way and customer support was identical I would go with the cheaper one. (HP would put their crapware on it anyway, so I would almost be tempted to go with the other company solely to not have to reinstall Windows.)
I apologize for going even more off topic, but I can't resist telling you about my latest XPS adventure: Procurement thought they could save a buck by getting a DELL reseller to supply our latest round. When I unpacked it, it was coated in a plastic film. I could understand that because who wants that nice aluminum case to get scratched in shipping, so I peel it off. It looks like some of the film is going inside the case, I took the side panel off. It was almost as if each panel was coated in plastic and I thought "Well, someone was committed!" When I noticed that my videocard was coated in plastic though it was also plugged into the motherboard, I thought "Well, someone SHOULD BE committed!"
OK, crazy stories over. I promise not to derail this anymore.