Is there another company out there like Clickbank that is just as good or better to do business with?
I like ShareAsale.com as well for all the features. All the networks above (except paydotcom) deal with physical products. They are a little bit different than clickbank (digital products only).
The problem with CJ is that from an affiliates view point they are a complete pain, you cant get into half the programs, and then if you're not active enough they terminate your account (just had mine terminated...2nd time in 4 years). If your selling egoods stick with clickbank, everyone knows them and the affiliate side is first rate. For physical goods Linkshare or Shareasale are recommended.