Actual upon further search, Alexa says the top two websites in english by number of hits are MSN and Yahoo,Google is third.
http://www.alexa.com/site/ds/top_sites?ts_mode=lang〈=en
I have always used
Google (or sites Google bought).
The folks that I know
that did use Yahoo
have all shifted to Google.
Don't know what's trendy.
Quantcast ranks Yahoo first, at 117m US monthly uniques; Google second, at 114m; MSN third, at 65m; and Microsoft.com fourth, at 60m. Google's traffic is more heavily concentrated in search than the other sites'.