I love Gmail and there is no way I will ever switch over to any other service. I use it for my primary e-mail and, although I do have some pop accounts for support on some of my sites, I'll be converting it over so I receive that e-mail in my Gmail inbox as well (which Google has recently added)
I switched to Gmail because at that time both Yahoo and Hotmail were providing very little space ie 6 MB and 2 MB resp. But now that Gmail provides more than enough space, I am not going to move to Yahoo or Hotmail. BTW, did you guys checkout the latest Windows Live Mail? I like the interface of new Yahoo Mail beta and Windows Live Mail beta. Both of them have the mail client like interface.
No way I will never change from Gmail to Yahoo. It's very slow, and gmail has a cool way of collecting conversations (or same emails from people)
na i prefer email on basis of their speed, best interface and service, i nevere bother about storage as i m not using even 10% of the provided space