NAL wrote:
I'm refinishing (professionally) 36 year old floors that haven't been
done since they were installed. I'm getting conflicting advice on
whether to use oil or water based finish. I have two dogs that play a
lot, so I want a finish that is the longest lasting. Any input? And
thanks in advance for your help!

One thing I can tell you is shy away from the super high gloss finish.
I did that and its a slipping disaster. If you wear socks your looking
for a blown out back/knee etc.