Thanks for all the help thus far. Here is a shot of where my two rooms meet. The photo shows how the two differ. The photo color isn't perfect but the far room was the one I posted earlier in the thread and the closer floor in the other room. This floor is going to be redone at the same time and right now it is a bit yellow.
First thing, are the woods the same or does one appear to be white oak? I am going to guess that the closer room had a polly coat laid down because the finish is much thicker than the other room. The color isn't as dark. Maybe the first room was never refinished and that is just how the wood looks.
The floors don't need to match, but I would like the room that was earlier identified as red oak to be as close to the same color as possible when I refinish. I don't really want to go messing with stains. I know I won't get the warmth out of the water based finish, but from those of you with experience.... will my color be anywhere near what it is now?