Dale,
It's what I do for a living, so I'll give you my $.02 FWIW.
The hardwood looks better IMO and would give a better return on investment in that people buy what they see, especially the people that are into details. Many times the detailed work that goes into installing anything makes even more difference than the material used. A pristine laminate job is better than a sloppy hardwood job IMO. But, all things being equal, hardwood is nicer.
I would, however, weigh the costs of each. If you are just throwing something in there right before you sell, consider the costs involved before doing so. Spending money on 'staging' the house makes the house look more appealing despite whatever type of flooring you have. Just my $.02
Edit: the one thing that bothers me about cheap laminate is the pooching up of the ends, but that's usually due to improper installation (pet peeve of mine). Hardwood also will do the same and expands and contracts. Make sure the installation is CORRECT and you'll be fine either way.
Davy