If it's two dissimilar metals coming together (Especially Steel and Aluminium) Then I'll use copaslip of some sort, and plenty of it. The copper contained in the grease acts as a "sacrificial anode".
Hmmm- I tried to read up on this, and found differering opinions - many saying that copper slip was only useful in hot conditions. I'll try to decide before I fit the new EBB.
I hadn't heard that, but then I haven't extensively researched it, just looked and my tin says effective down to -40C and up to 110C
I've been using it on my EBBs since 2004 without any issue, though as I said they get serviced at least once a year, so it may be that any grease would have been OK.
What is it that these reports are saying? That the solids are not required, or that there's a failure with the grease they're in?
Alternatives would be any anti-seize grease, there's several cycle specific ones from the likes of Park Tools, but I have a suspicion that such specific products are generic and rebadged with a considerable premium.
I have a tub of waterproof marine grease which I use in other applications where keeping the water out is a higher priority than preventing seizure, usually around bearings, chances are it would be just as good in the EBB shell, but my tin of Copaslip will last me this lifetime so I have no incentive to try it.
I have a friend who swears by Vasaline, his bikes run perfectly so it obviously works for him.