Is fb_graph or Koala ruby gem better than facebooker2, using the facebook graph?

Is the fb_graph gem better?

It seems to be newer, but the facebooker has a lot more people using.

http://github.com/nsanta/fbgraph

http://github.com/mmangino/facebooker

Update:

I looked into koala, and it seems it is a good choice as well.

http://github.com/arsduo/koala

I also figure out that fb_graph is different than fbgraph. This is the right one:

http://github.com/nov/fb_graph

And there is a new facebooker, that uses that Open Graph API, but it doesnt look as mature as the others:

http://github.com/wallace/facebooker2