For the sake of this suggestion I would only be suggesting Ogrimmar or Stormwind, maybe the other Racial Cities of whichever faction you belong such as Darnasus, Ironforge, Exodar, Silvermoon City, Undercity, Thunder Bluff, Etc.

There's a bugged quest that prevents the quest line from moving along in the Goblin Lost Isles Quest Chain and since it's mandatory to change the instance so I'm screwed along with everyone else who has discovered this Bug.

[[The Bug in question is being unable to target the Faceless One boss monster and kill him.]]

If I could pay money to make my Hearthstone Location Ogrimmar I'd be a happy camper.