Sounds like the perfect storm....kids,dogs sand...lol..The 2 stage Bacca/Glitza will hold up better than poly,but is very hard to apply,so you need to find someone who has lots of experience with it...Good luck..
Oil-based poly is more durable, however water-based poly is more flexible. In my experience water-based poly is the best choice because it wears evenly. Oil-based poly tends to fail in sections, it wears from the perimeter of the plank in and at an uneven rate.
I recently used Pallmann Magic Oil 2K, which is about 93% oil, 7% wax. It absorbs deep into the wood (if sanded properly) and scratches do not show up as white lines. It can be 'revived' by adding more oil to the wear areas and doesnt show lap marks. I have only used it the one time, but I think it is awesome.
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