Flooring question on 1st flip

[Mohamed Nagoor]

I am getting GC estimates on my 1st flip. Home built in 1964 has original hardwood floors  throughout the home except the kitchen and hallway. One of the contractors would re-stain existing hardwood floors while the other would install new vinyl planks throughout the entire home, with one caveat. He will not remove the existing flooring, instead lay it over the existing. Both estimates are pretty close.

Which option would you suggest I go with?

Any guidance is truly appreciated.