I use Google Docs for everything. It's simpler to use, it's simpler to share documents, it's inherently more mobile. The updates are instant. And so on.
Now I would be glad if there was free (as-in-speech) alternative to Google Docs, so I could just host it myself on my server. There IS etherpad, but it doesn't do tables and works slightly differently.
What do others think? Are "offline" office suites still relevant?