I love the villains in all Raging Swan's recent villain collections. Several of them will be making appearances in my upcoming campaign. As always, can't recommend this supplement highly enough.

I appreciate the range of both backstory and character stats in the villains / lesser villains / greater villains line.

It is easy to risk being cliché when generating villains. Mixing and matching content from this book should give you some fairly long mileage without losing originality.