gmail n yahoo 
Regards.
gmail totally…Yahoo is for junk and updation mails from forums. Gmail is for orkut, Google Reader, news…all in one. MSn again for Messenger
Also using Indiatimes professional email. Indiatimes sucks. Must say that loud. No secure login, even if I copy the link address of an email and put into another browser, chances are high that it wont ask for a password!!
Yahoo has been my 1st and only email account. Tried hotmail and gmail, was not impressed. 
yahoo for me
hmm ppl who r using email webservice ..except gmail…shud try gmail…gmail rocks.i dont know abt rediffmail etc.i ve been using gmail and yahoo.gmail rocks…more storage…faster access…better implementation…etc..many things.ppl shud use gmail…once…then they ll know…what it is.