What makes it interesting is the disparity between those who believe it doesn't matter what one uses, and those who believe what one uses is critical.

Winnow out the blissful ignorance of the former, the gullibility of the latter, and its not too hard to make reasonable choices for what best matches the application, while avoiding those that are entirely unsuitable.

My preferences are John Deere corn head grease, and Lubrimatic marine grease for most applications. Phil Wood waterproof and tenacious, White Lightning, and Boeshield are reserved for a few special applications.