This is a difficult question to answer without knowing more about your particular business and what you need from your ecommerce platform. That being said, both Shopify and WooCommerce can be effective tools for creating an efficient dropshipping business.
Here are some things to consider if you're trying to decide between these two platforms:
Ease of Use - Shopify is arguably easier to use than WooCommerce. It is designed purely for eCommerce and has more features that can reduce manual labor. Whereas, WooCommerce is a Wordpress plugin and might require more technical setup knowledge. Although this can also depend on your technical experience.
Integration - Shopify integrates well with a range of ecommerce tools, making it easy to set up and manage your selling operations. On the other hand, WooCommerce offers an open source platform, making it more customizable for businesses with unique needs.
Features - WooCommerce is light on features, but Shopify offers robust features for dropshipping including payment processing, automations, and analytics.
Pricing - Shopify and WooCommerce both have different pricing models. Shopify has three plans ranging from $29 - $299 per month, while WooCommerce is completely free to install and use but requires additional plugins to add more functionality.
Ultimately, it comes down to what kind of business needs you have and what features you need. If you need the ability to customize your ecommerce platform and want a free solution, then WooCommerce may be the right choice. But if you need an all-in-one solution and don't mind paying a monthly fee, then Shopify is the better option.