you will find *very* few people who have experiences with both of those units, so for the most part you will find those chiming in with experiences with either just the r44 or the fr2le.. since that is the case, I would spend my time reading the opinions of these units singularly on this board AND listening to recordings done with both and decide for yourself. If you have a need for 4 channels, the r44 is obviously your choice.. If you see yourself only recording two channels, then I would consider the fr2le seriously due to its wonderful powering option AND the fact that it sounds very good as a stock *all in one* unit.
I hope this helps..