We have a dog and hardwood floors currently which are getting slowly
destroyed by all the running in the house, etc. So we're looking for
something more durable (with less maintenance ... ie: no refinishing
needed, etc.).

Another option, though somewhat expensive (not that hardwood isn't)
would be slate...rock is long lasting (providing you're not taking a
hammer to it) and doesn't usually require off-gassing (depending on
what you use to lay it).br

It's not obvious that slate will stand rough use better
than properly plasticized hardwood. And when it does
take damage, fixing it is a bigger deal.