If you want something for the wow factor, go with ROP. IMO ROP is more for ooohs and ahhs... Also for short term use, unless using the ROP low bulb.
The Malkoff I have runs for a few hours with about 200ish lumens out the front for real work. I do not worry about the batteries dieing in 20-30 mins as with a ROP. Not to mention ROP is too bright for most work, unless you use it for spotting outdoors.
I have both, and they have thier own places.
Edit: Saw your question about the MN60. MN60 is in the league of ROP and not the Malkofff. I find the MN60 better than ROP high outdoors.
Also in all my posts I refer to the single Malkoff dropin, I do not have the Quad.