10/10 for me. It took more than a decade for me to truly get Loveless, but when it sunk in 
I don’t think 10/10 ratings should be handed out willy-nilly and they should be reserved for only truly special albums, but I don’t agree that there’s only a handful in existence. Like @yvash said, I’d guess there’s easily 50 or more albums in my collection I’d rate 10/10, which for sake of argument is about 1.5% of the music I own. Sounds about right to me, especially considering that music collections are biased towards stuff an individual particularly enjoys, rather than a fair selection of all albums across all genres…