What Steve said, except that a truly clear waterborne finish adds almost nothing to the color of the floor. Go with the Bona Traffic, unless the price puts you in the cardiac ward, then the Mega is also a very good finish (but not a two-part).

I really like putting down a coat or two of SealCoat shellac before waterborne finishes. Pops the grain, warms the color a bit and helps prevent grain-raising.