This is a matter of opinion, but I think HiveOS OC is more stable than AM.  AM relies on MS Afterburner Remote Server, and a hack for remote execution.  It works sometimes, others dont. Anyway, this might not be AM fault, but windows.  I am not a linux fanboy in no way. I just think for mining rigs, to be left unatended for weeks or months, a stripped Linux distribution is a more reliable option.