Azerbaijan.
Even if I’m a Christian, this conflict really isn’t about religion, it’s geopolitical. Emboldening Armenia is just emboldening a Putin-bootlicking State and we can’t have that. Azerbaijan for anti-Russia reasons, not because they are “morally right” (no one is) Also their natural resources/potential could be very useful.
Realistically though, America probably shouldn’t jump into this right now. It’s very risky, although I am more sympathetic to the Azeri side on a personal level. Siding with Putin at a time like this is not acceptable.
Siding with a Turkish client state against
Armenia in particular doesn't strike me as a position from which one can claim any kind of high ground...