What e-mail provider do you think is the best?

So, I decided to start with a simple topic most people know about. I personally like gmail the best. It's user friendly, and always being updated. Through gmail, you can video chat, make calls, text to cell phones, and of course, email. They have lots of different theme options and add new ones regularly, I really like how personalized it is. They also have a really simple vacation response tool. When you go on vacation, you can type in a message saying when you'll be back to reply and it automatically sends it to anyone who emails you. I've played around with it quite a bit, but still haven't explored all their features. What provider do you like? Why do you like it?