Is it better to seo optimize a bunch of domains with 1 page or 1 domain with many pages?

I have a halloween costume business and I have 200 domain names related to my business with great articles written for each domain. Would it be a better for seo purposes to create 200 one page sites to seo with sites like google or would it better to create one big site with the 200 articles having the domains have a 301 redirect to the specific page in the site I would create. For me I can do both in the same amount of time so for me it is more about getting ranked in Google, Yahoo and Bing?