Some of the qualities that make a real difference, for me are:
(1) Does the grease harden over time more quickly or less quickly?
(2) Does it leave more hardened residue or less hardened residue, after drying and thickening over time? (Polyurea-based and synthetic greases are much better than lithium-base and calcium sulfonate-base greases, and probably also aluminum-base greases, in this area.)
(3) Does it extend the life of bearings and other components, compared to other greases?
(4) How long does the grease last -- how long does it do its job well?
(5) Is it water resistant (both to washout and to absorption)?
(6) Does it provide a high level of corrosion protection?
(7) For bikes kept indoors, is it low odor?
There are some others too. Greases that are less toxic - both in terms of personal exposure, and in terms of ecotoxicity (including manufacture and disposal) - are preferable.
Super Lube seems like great stuff in many ways. It's non-toxic and even food-safe (for incidental exposure), and it gets many rave reviews. The thixotropic thinning during use is a potential issue though, at least in some applications.
https://www.amazon.com/gp/product/B0...=ATVPDKIKX0DER