i use hotmail for messenger, yahoo for forums :P and gmail for messages.
in other words i use Gmail
it is the best, since they use Ajax as the main web develop language, thats why it is faster.
the spam killer is not that good, but it is better than hotmail and yahoo.
you have 2745 MB for storage.
mobile interface is faster and friendly.
and the best... it doesnt have all that advertising, its annoying :S
