Goldilocks looks like a boy: a rather messy buff columbian.
Fancy Pants and Little Baby are close to wild type.
The only way to get birds to breed true is to breed and select, breed and select, breed and select.
Many of the wild type genes are recessive (not all), which means that they will not show if a more dominant gene is present. Therefore they may well breed fairly true; just be aware that in some cases wild type is not the most recessive (for example, e+ is dominant to e^b and sometimes E^Wh).
I would try breeding with either your splash or black, depending on whether you want blue in the offspring, or acquire a BBR.
If Goldilocks is indeed a cockerel, try pairing him with a splash girl for blue buff columbian. Or a black may (or may not) help even out the buff colouring.