Hotmail has the biggest spam problem I have came across. Everytime I log onto it I get stuff either related to viagra or porn.
I have recently noticed that someone has managed to spoof my email address and I get a spam appearing in my inbox.
As there is no way of stopping it, I signed up to Google Mail. I have been signed up with them for a while and havent had any spam appearing there at all.
Highly recommend signing up for Gmail instead of Hotmail.