Beyond personal preference, you might also want to consider things like, perhaps, what colors blend to prevent predator problems? I know that my Silver Laced Wyandottes seem to do really well free ranging out here because their colors blend in SO well to their clearcut surroundings of black, silver, and white twigs, stumps, and logs.
I prefer Gold Laced Wyandottes only because I free range and the lighter colors tend to get picked off by predators more easily. The gold blend in with their surroundings. That being said, the silver laced are more striking and noticeable....better eye candy
Okay I'd hate to break it to you, but the breeder you mentioned is just someone who bought poor-quality hatchery birds and started breeding and selling them for $$. The Wyandottes shown are Laced, not pencilled, and at that are horribly "laced." The rest of the birds are also typical hatchery stock.
If I were you, I'd get some Silver or Golden Laced Wyandottes straight from a hatchery or local feedstore - They're the SAME quality for a cheaper price.