I have been using Phil Wood Waterproof Grease for over 40 years. This grease when installed in any bearing assembly stays soft and in place for at least a decade or more. On disassembly after many years, internal bearings were always coated with this fine lubricant and still moving smoothly.
This grease is fairly light when packed into bearing assemblies, yet stays put resulting in really excellent and smooth rotation of the assemblies. Bearings stay nicely coated with grease. The Phil Wood grease also fills in the gap to outside the bearing assembly preventing ingress of dirt and moisture.
Compare this to the classic Campagnolo white grease, which to me, is much too thick and does not reflow into the rolling bearings after many miles of use, nor does it create a seal to the outside unless very heavily packed into bearings.
Expensive. But then again, you get what you pay for. As with most things Phil, this is simply The best. Lasts practically forever and is actually waterproof. Can't say that often.
I've rebuilt ball-bearing hubs (Campy) with Phil Waterproof Grease for decades ... and the bearings last for decades. I over-grease the fittings, and let them equalize themselves in the first 50 or so miles. Rain, puddles and the hose don't get into the bearings. Using Phil generously, I have Campy, Suntour and Shimano loose ball bearing hubsets that are 40 years old and roll like new. Now I let the bike shop boys repack bearings ... but I hand them a tube of Phil.