I prefer Hotmail because I can see when I have new mail when using MSN (or rather, Windows Live Messenger now).
But I do indeed have a GMail account, and have for years, and the address exactly the same as my Hotmail one, just replace "hot" with "g". I didn't use it much before to warrant mentioning it, but since Will Mallia sends me the most maps and is almost guaranteed to be sending me something to that address every weekend anyway, making it a habit for me to check that every week now, I might as well say anyone can use that so it's no longer Will Mallia's personal direct line.