For me unlike Bitcoin Cash, Bitcoin Gold does not make a claim to be the real Bitcoin. Instead, Bitcoin Gold project hopes it can prove a valuable exercise for Bitcoin, a sort of test case for a hard fork that Bitcoin itself may one day require. And their main goal is to build a perpetually ASIC-resistant version of Bitcoin. I like the idea but I don't know if this project will failed or successful since Bitcoin Gold still does not exist and we still don't know if big communities will support and invest in this cryptocurrency.