My suggestions. If you want a guild meeting:
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* On a ship - Swamp of Sorrow
* On a goblin NPC-filled coastal village - There's Fuselight-by-the-Sea
* On an empty dwarvish farm - There's Arathi Highlands
* On an empty Gilnean city - Gilneas of course!
* On an empty Gilnean Mansion - Greymane Manor
* On a night elf hold - Feathermoon Stronghold
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I visited all of those and I vote for Feathermoon Stronghold. The Inn seems just like a perfect place for us to gather (with the no-no of having no booze for sell). It has a nice view, a cozy "house" with tables and stools and beds and a wide balcony with some tables too.