I working on a new website and wanted some advice/feedback on OAuth vs OpenID vs Standard site owned username/password.
I am in favor of supporting integrating user authorization using OpenID, Facebook and any other authenticators out there. Give the user a choice.
ALSO give them the option of not using them. Particularly in adult oriented websites your users may choose not to go with something that isn't as anonymous as a simple sign up to your website. Just use best practices when it comes to storing passwords.