All the chapters have good stuff and are worth purchasing, I just wish they were cheaper.
Since chapter 10 and 11 made all the default chapters obsolete you should get those since they have the most activity.
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http://i43.photobucket.com/albums/e373/Gaiash/KumaVsZangief.jpg
LOL!!!! I hope that's a joke....names don't get more n00bish than that