Unless someone has Pure Lewisis the babies will always vary. Genetics are a funny thing... I say the person with the best lewisi is the person who is lucky enough to produce a very blue Iguana with confirmation and head shape that most closely resembles a Full Blooded animal from a particular egg,,,its always egg to egg I dont beleive any one breeder produces the best and babies be bought sight unseen. Personally I dont even believe in judging from Hatchlings because you can never he sure of body confirmation and head shape which is a big thing if your looking for your Iguana to look like a lewisi and not a genetic freak hybrid with odd shaped head