Hardwood Floors in 3 Story Apartment?

[Dar Fornelli]

About to close on an early 1900s 3-story building in Kansas City that was split into six apartments some time ago. Apartments all currently have nasty carpet and/or resilient flooring covering the original hardwood floors. 

What advice do folks have on pros/cons of hardwood floors in an apartment? My  main concern is noise projecting to units below without any padding to deaden the sound.  I'll be ripping up all the flooring regardless and installing lifeproof plank in the kitchens/bathrooms at a minimum.