I have three email accounts, and here are my FAVs, and least Favs by order:

#1) By Far my most FAV and used, GMAIL, for all my personal messages to friends & relatives, hardly ever sees spam

#2) For all my other needs, Hotmail (Outlook), for mostly all else, Discussion grps, online shopping, bill paying, financial, Medical ports, etc. etc. and of course because of all of that, gets spammed unmercifully, LOL.

#3) Like you, LOL, My Least FAV YAHOO. Probably the first one I ever had, MAYBE, can't really recall, so long ago, but has changed so often, and when AT&T owned it, not sure if they still are involved, it became junkier and junkier. I hardly ever use it, but for one of my FB users, I have to when I need a security code to sign back into to said FB user.