Try tiling as much as you can - and keep some of the tiles to spare.
One bedroom in one of our places is tiled (it's on the ground floor and opens onto a garden) and that is very successful. Buy a fluffy rug for €20.
In some living rooms, we've been using Kaehrs flooring - a rather expensive semi solid with 30 year guarantee and used in semi commercial settings a lot. However you should see what concave 6mm diam. steel stilletoes do to it.
So laminate is probably the best option - the lifespan of even really good quality products is just too low.
Solid flooring which one can sand is also far too much work to be practical in real terms.
Slightly off topic:
Regarding furniture: I dislike using timber furniture - as there are all sorts of "in between states" between good condition and bad condition, (cuts, water stains, cigarette burns, dents etc.) which makes things difficult when tenants move out and you have to say whether it constitutes reasonable wear and tear.
I recommend stone,tile or glass tables, metal framed beds, and leather/ette sofas. Also all metal lamps and glass lampshades.