I've been very pleased with FrogLube grease. It's very slick and stays where you put it.
For example, you can lube the BCG, rails etc. put your AR in the safe and it'll still be ready to go 2 months later. When I used CLP it would run off and the innards of my AR's would be dry.
If Seals use it and Marcus Luttrell recommends it, that's a pretty good endorsement IMO.