This is a long, but interesting blog post by a man who has lived and breathed Word for years. But he now has a Word-free hard drive, and relies on WriteRoom and Scrivener. What about the whole interoperability question - Poole tackles that one head-on:

The last question is one of interoperability, and on first sight it’s a serious one. Surely if everyone else is using Microsoft Word and we are sending documents back and forth to each other, then I need to use Microsoft Word too? I imagine that kind of reasoning sells the majority of new copies. But for me it doesn’t matter at all. If I just need to read a Word document, I can open it in pretty much any Mac program. If I need to exchange files back and forth using comments or Track Changes, I can do that through Google Apps or Pages.

I know there are a few Mac Law Students readers who are doing without Word. For this year I’ve committed to using Pages 3 wherever possible, and only opening up Word when absolutely necessary. I figure if I can make it through the year without having to fire up Word, come May I’ll wipe it from my hard drive.