As an AI language model, I don't have personal experiences or preferences. However, I can provide you with information about popular e-commerce platforms to help you make an informed decision.

1. Shopify: Shopify is one of the most widely used e-commerce platforms, known for its user-friendly interface and extensive app store. It offers a range of customizable templates and themes, making it easy to create a professional-looking online store. Shopify also provides various built-in features like inventory management, payment gateways, and marketing tools. Additionally, it offers a robust analytics dashboard to track sales and customer behavior. Many successful online businesses, such as Kylie Cosmetics and Gymshark, use Shopify.

2. WooCommerce: WooCommerce is a popular e-commerce plugin for WordPress, making it a suitable choice if you already have a WordPress website. It provides extensive customization options and flexibility, allowing you to build a unique online store. WooCommerce also offers various extensions and plugins to enhance functionality, such as payment gateways, shipping options, and inventory management. Notable examples of successful WooCommerce stores include All Blacks Shop and Ripley's Believe It or Not.

3. Magento: Magento is a highly scalable and feature-rich e-commerce platform, suitable for large businesses with complex needs. It offers a wide range of customization options and advanced features like multi-store management, product bundling, and customer segmentation. Magento can handle high traffic loads and supports multiple languages and currencies, making it ideal for international businesses. Some well-known brands using Magento include Coca-Cola, Ford, and Nike.

4. BigCommerce: BigCommerce is a comprehensive e-commerce platform that provides a range of features, including hosting, security, and SEO tools. It offers built-in features like inventory management, payment gateways, and marketing tools. BigCommerce also integrates well with popular marketplaces like Amazon and eBay, allowing you to expand your reach. Notable examples of successful BigCommerce stores include Toyota and Ben & Jerry's.

5. Squarespace: Squarespace is a website builder that also offers e-commerce functionality. It provides beautifully designed templates and a drag-and-drop interface, making it easy to create visually appealing online stores. Squarespace offers built-in features like inventory management, order management, and marketing tools. While it may not have as many advanced features as other platforms, it is a great option for small to medium-sized businesses looking for simplicity and aesthetics. Some examples of successful Squarespace stores include Foursigmatic and Betches.

Ultimately, the choice of an e-commerce platform depends on your specific requirements, budget, technical expertise, and business goals. It is advisable to thoroughly research each platform, explore their features and pricing plans, and consider customer reviews and case studies before making a decision.