Aluminum vs Zinc Anti-Seize
I've done a great amount of testing and investigating bicycle bearing greases and anti-seize pastes. My conclusion, opinion and experience is that for bicycles, any anti-seize will do. Relatively low pressures and temperatures don't create serious challenge for the anti-seize.

My first choice is kaolin and titanium oxide based anti seize, since it is white (doesn't look like rust to bike shop customers, so less explaining if some is left visible) and very easy to wipe off the places where it isn't needed. The one I use is Famol PT, but look for a locally distributed/manufactured version. Or use any other anti-seize.