Hardwood Floor Installation or ???

Looking ahead, eventually the carpet in the front of the coach will need to be replaced...right now it's still in great shape so this query if only for reference...or I buy a coach that need carpet replacement.

Since I know Nada about floor coverings I may be asking some rather dumb questions.

First, I have heard/seen references to both a "floating" floor and screwed floor. What is the difference and what would be the most suitable for a MH.

What other options should I look at besides Hardwood that still complement existing tile (unless I replace all the tile also)but still maintain high quality appearance?

Thanks for any suggestions.