There are several comprehensive ecommerce platforms available in the market, each with its own strengths and weaknesses. However, one of the most widely recognized and popular comprehensive ecommerce platforms is Shopify.

Shopify is known for its robust features, scalability, and ease of use, making it suitable for businesses of all sizes. It offers a wide range of tools and functionalities to help entrepreneurs build, launch, and manage their online stores effectively.

Here are some key features that make Shopify the most comprehensive ecommerce platform:

1. Store setup and customization: Shopify provides a user-friendly interface and a wide selection of professionally designed themes to create a visually appealing and unique online store. It also offers a powerful theme editor that allows customization of the store's layout, design, and functionality.

2. Product management: Shopify offers a comprehensive product management system that enables businesses to easily add, edit, and organize their products. It supports unlimited product variations, inventory tracking, and automated SKU generation.

3. Payment and checkout options: Shopify integrates with over 100 payment gateways, including popular ones like PayPal, Stripe, and Shopify Payments. It also offers a secure and seamless checkout process, ensuring a smooth customer experience.

4. Marketing and SEO: Shopify provides built-in SEO features, allowing businesses to optimize their online stores for search engines. It also offers various marketing tools, including discount codes, gift cards, email marketing, and social media integration, to help drive traffic and increase sales.

5. Mobile responsiveness: With the increasing use of mobile devices, Shopify ensures that all its themes are mobile responsive, providing a seamless shopping experience across different devices.

6. App integration: Shopify has an extensive app store, offering a wide range of integrations and extensions to enhance the functionality of the online store. From marketing automation to inventory management, there are numerous apps available to meet specific business needs.

7. Customer support and scalability: Shopify provides 24/7 customer support through various channels, including live chat, email, and phone. Additionally, it offers a scalable infrastructure that can handle high traffic and sales volume, ensuring the store's performance remains consistent even during peak times.

References:

• Shopify: https://www.shopify.com/
• Shopify Themes: https://themes.shopify.com/
• Shopify Payments: https://www.shopify.com/payments
• Shopify App Store: https://apps.shopify.com/