It's not a question that gets a simple answer! A lot plays into it. Yes, definitely the female contributes 50% of the genetics, so her side of the family is just as important.
I wrote a bit about it here, with examples from my own chameleons:
Like Father Like Son. You can see that there is a lot of variability, so buying the offspring of one male over another is NO guarantee that you'll get what you want.
But there are a few things that make it more of a certainty. The big one is looking through the family history of a panther or veiled lineage and seeing if the breeder is shooting for a consistent, specific look. If you go to a breeder that has 5-6 generations of pure blue Nosy Be panthers with zero red speckling, then your chances are dramatically higher that you'll get exactly that. Because there is genetic consistency in the background.
However, if you want to buy a pure red and blue Ambilobe, for example, but the lineage shows lots of Ambilobes all over the place (green, yellow, orange, etc.) then it's like buying a wild card. The same goes for WC chameleons, I consider them wild cards. Who knows what diversity they have in their background. A couple males may look exactly like their dads but their siblings may be totally different.
So in short, genetics can always be a bag of surprises. But if you find a breeder that is working with a specific project and you let them know what you are looking for then most of them are happy to help you find an animal that matches what you want.