The best, by default.
I dont know why Facebook changed its full (desktop) site experience, but I find it impossible to know when Im using the site as my verified page or my personal, non-verified page. If I want to post as my verified page, and know Ive posted something as my verified page, Facebook Mentions is the only way to go. I still prefer using Buffer to share links, but when I have to interact with Facebook as my verified account (replying to comments, following others updates) I greatly prefer Mentions to the desktop site.
Selanne55533388761 about
Facebook Creator, v4.4