Old Oak Floors to be redone

[Karen Sanders]

I am buying 2 houses on one property. One is a rental and the other will be my home. The 50's oak floor is still there and looks pretty good but I am in the middle of refinishing them by stripping them clear down to the wood. I have been told that instead of staining and then putting poly on that I should get the poly with the stain in it. 

Good idea? Also is poly the best coating?