I use win2k at work and I dislike it, having come from NT. I liked NT 4.0. I think it was Microsoft's best OS.word and excel do okay.
i have yet to see an MS os that can hold a candle to linux. i use win2k at work and what a slow freaking POS.
outlook - our email is really bad. very slow, crashes all the time.
i am just so glad redhat has that cygwin stuff.
I am not a fan of Word either, as I have used LaTeX on Linux now and see the true way to produce documents. Excel is pretty good, though.
Mostly, I look at Windows as a toy OS. It feels childish and weak compared to Unix. It has a pretty point and drool interface, but under that it is really pretty lame.