You should check out the SweetFX for ROF, its called FlightFX and its a program where you can adjust most aspects of ROF "look".
Here is a few shots of ROF after my tweaks...
The look of flight sims is very personal, and each person might perfer one look over another, but where ROF beats COD hands down is the LOD/planes at a distance, ROF does not lose detail at all and FSAA and FSAF is done very well.