these two?
to me the Albino Calico looks too much like a normal, albeit a reduced pattern one. the Albino hides the high whites and speckling within the pattern found in Calico's. IMO i don't think the yellow on white offers great contrast to show off the Calico pattern.
and i think the Albino Champagne would look too much like your Albino Pinstripe. both are high yellow BP's and some lose what white patterning they have over time.
so what it comes down to is what u like best and how would u use the genes. i like the Calico gene better to work with your Enchi Butter het Albino.