In agreeance with what a member said earlier in this thread, Hotmail HAS done a great job of curtailing Spam. I use Hotmail LIVE Beta and get virtually no spam.
Unfortunately like someone else also said, Hotmail can not be set up for push e-mail through BIS. When I try to add my account I get this message:
I do have my hotmail account linked through Outlook express at home, and have considered trying to do it that way...but then decided to say screw it, I'm switching to Gmail.
Annoying but hopefully worth it.