Gmail is pretty much better than those in every area, so someone still using those usually indicates a lesser level of tech savvy. But I wouldn't say that I have seen people ridiculed for having them.
I disagree. I have a yahoo account, as well as a gmail account. Google calendar is much better than Yahoo's, and the whole family of Google programs that link to one customer is pretty good. But gmail is NOT better than Yahoo's email. For example, in Yahoo, I can click numerous emails and hit the KEYBOARD delete button to delete at one time. In gmail, I can't delete by hitting the delete key. I HAVE to use the mouse to click on delete at the top of the page in gmail. That's pretty old school techie. When you spend as much time on a computer as I do, it matters to be able to use different parts of the hand to do different things. Speed is also important. Yahoo USED TO NOT HAVE THE DELETE KEYBOARD function, but it improved so that it now does.
I also can't see the header of someone sending me an email in gmail. That's very old school. You can identify sometimes where an email originates by looking at the header. In Yahoo, you can right click and see the full header. What was even better was in the old days, in Outlook you could actually view part of the body of the email w/o opening it. Outlook discontinued that feature, but you could still see the originating header info.
If you deal with finances, Yahoo's finance page(s) are far superior to Google Finance, which often has incorrect information. Yahoo also has an excellent portfolio setup, where you can mirror your holdings and track pre-market and after-market changes, and lots of other information.
So I use a Yahoo account for all financial things, including subscriptions to financial sites, reminders, alerts, and then use the Yahoo Portfolio & Watch program.
I use Gmail for friends' email, as well as bill reminders, which are linked to and come from Google's calendar. I use Google's calendar for all my bill reminders and due dates, as well as dividend payments, dog exam reminders, and such.
I used to use Outlook as a program on my pc, years ago, but Microsoft stopped including that in its office suite, so I stopped using it. I didn't like the online version of Outlook. So I don't use Outlook at all. Or Hotmail.