I'm still with the guy who said "whatever free sample was in the match goodie bag."
I have a little sample tube of Froglube. It seems pretty slick and I will use it on my aluminum framed Mixmaster A IDPA ESP in spring and I am shooting frequently. I have read enough about it going rancid in storage that I am leery of leaving it lay. In the meanwhile, I am lubing that gun with Brownell's Friction Defense samples, my Nanolube sample having run out.
The last lube I bought was Militec 1, of which I still have a good deal. I lube my Kahr E9 with it. Otherwise, I have blended some of it with a pre-CLP milsurp oil (It originated as a gear lube additive.) and it does ok but nothing special. I will not buy more, but the mix is fine on my steel framed guns.