mobil one for lube, remoil as a spraydown, corrosion protectant.
This. I only use Rem oil as a quick application if I've handled a gun and don't have time to thoroughly break it down.
I apply a moly grease on the rails on my 1911 and Sig.
Given the cost vs performance of Mobil1 (free, I use the drippings from the bottles when I change oil in my cars), I haven't seen fit to use any of the exotic lubes.
heh heh... exotic lubes... LOL!