AWhich one do you prefer white or golden marzipan?

i've only had the white

if the golden is a gold color then you will run into difficulties coloring it* for your project but if you're just gonna eat it or use it as is no worries

white and golden are interchangeable according to this:

http://www.waitrose.com/content/waitrose/en/home/recipes/food_glossary/marzipan.html

* no pale pink or pale green