1. Sim City: There are many city building games
flowing all over Facebook, Sim City has set the
standard for city design since the 1980s, and the
Facebook version brings back so many of the great
features it’s players love. Sim City Social capitalizes
on players constructing cities with their friends, and
how those relationships can form.

2. Angry Birds Star Wars: Angry Birds Star Wars
Game For Facebook is a smart infusion of gameplay
ideas from the beloved film property and Rovio’s
inescapable game series. The Facebook type adds
leader-boards so that you can compete with friends on
a weekly challenge designed to keep you coming
back.

3. Marvel’s Avengers Alliance: the Avengers Alliance is
a turn-based role-playing game featuring the entire
Marvel Comics Universe. You can collect iconic super
heroes as if they were stickers and deploy them on
missions to take down the forces of evil. This is one of the Best Facebook Games you can not ignore.

4. Word Wrangler: Word Wrangler is also a new
Facebook App. The game can also be played with or
without any opponents. The games are timed and can
be played in single or duel mode. If you want to see
your rankings, it’s displayed in the Standings section,
where you can see how you stack up against your
friends.

Source: http://www.arewatech.com/2013/01/best-games-for-facebook.html

you left mafia wars out of it

Thanks for your positive observation