Facebook is more popular than Twitter..... My opinion is that Twitter and Facebook are provided different platforms.Facebook is a perfect social network and Twitter is perfect micro-blogging site.They can only compare with the category of popularity and performance.Not compare with similarities.Because they have no similarities.Twitter and Facebook can reach a wide range of peoples.facebook is more entertain than Twitter.So the result Facebook is an addiction for youths and Twitter is very much handled by professional who use their social media interactions for their business.You can compare Facebook with Google+ and Twitter with Tumblr.
Even though Twitter should be better for our purposes, I have to say that Facebook is much more popular with the average person.
facebook is more popular because twitter is text alone unlike facebook where there are many applications.
I see twitter like a room filled with excited kids all talking over the top of one another, with no one taking any notice of anyone else! Of course FB probably leads the way, otherwise it wouldn't have grown as big as it has