This is only my opinion, but CH (Captive Hatched) means most likley they are imported from a farm overseas, Nothing really wrong with that, from what we have found is the US Captive Bred babies tend to be better, and this is what I mean.
US Captive bred- Means most of the time the Sire and Dam that produced them where selected for certain characteristics, meaning might turn out better as adults.
What we look for in our Irian Jayas (Western Papuans) is reduced black, most breeders and keepers seem to be going in that direction. the less black the better, which means more of the tans, chesnuts, and browns come threw.
Like I said there is nothing wrong with CH, as long as they are well started and feeding well. And every person is going to give you a different idea of what makes a good IJ, but from what I see its reduced black, is generally what most people strive for.
Good Luck.. 
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Executive Reptiles
Amanda Kingsbury & David Kendrick
www.executivereptiles.com