I vote hardwood as well. In particular I have had some great success with engineered bamboo flooring - I love the look (lots to choose from) and in 3 years appears to be more durable than the 'natural' hardwood I have in other parts of the house. Also with the bamboo being manufactured hardwood I had no bad or warped pieces to weed out while installing. My 2 cents for the day.

Dan
On-Wall M5HP LCR, QS8 & EP500 in 7.1