Office suites.

I'd like to compare and contrast 3 possible options for teachers and students to create documents, presentations and spreadsheets. Microsoft Office seems to be the default that most people use. The other two I'd like to consider are Open Office and Google Docs. Let's start with a chart: (which I made using Open Office, by the way)

	Microsoft Office	Open Office	Google Docs
1. Universal compatibility	x	/	/
2. Full Features	/	/	x
3. Cloud storage	x	x	/
4. Cloud collaboration	x	x	/
5. Free to all	x	/	/
6. Needs Online connection	x	x	/
7. Download	x	/	/

Now to address the differences.
1. It seems to me that since staff and students use Macs and PCs, and we may be introducing Linux netbooks next year, cross operating system capability is really advantageous. Strike one for MS.
2. Google docs only has really basic features, which is what we use 98% of the time. But the other two do leave it in the dust.
3. Is it better to store docs on your hard drive and the school network, or let Google store it? That's the choice here. 
4. Only Google docs allows teachers and/or students collaborate in real time. Anywhere on the planet. 
5. Free and works without local tech support beats expensive and glitchy. 
6. The biggest downside of Google docs. If your offline, you can't work.
7. Yeah, anyone anywhere can use it. 

It seems to me that depending on specific need, Google and Open office are the best options. Other than inertia, I see little advantage to MS office. Perhaps the best option is working in Open office and storing docs on Google for backup.
Can you guys experiment with these two free resources, please, and post your comments below?