What's the top contact center software?

I want to find the best contact center software possible. Looking at G2's category page, it looks like the best software are:

Salesforce Service Cloud is a comprehensive customer service platform that offers a 360-degree view of customers. It provides tools for case management, knowledge base, and omnichannel support, enabling businesses to deliver personalized and efficient service

Nextiva offers a unified communication platform that combines VoIP services with contact center solutions. It is designed to enhance customer interactions through reliable and high-quality voice communications.

Talkdesk is a cloud-based contact center solution known for its advanced AI capabilities and flexibility. It enables businesses to provide personalized customer experiences and offers a range of integrations with other business tools.​

Aircall is a cloud-based phone system designed for modern businesses. It simplifies the integration and management of calls with productivity tools and CRM systems, enhancing team collaboration and customer interactions.

Amazon Connect is a scalable contact center service that offers seamless integration with Amazon's suite of AWS services. It provides a flexible and cost-effective solution for businesses looking to enhance their customer service operations.

I don't want to make this decision too quickly. What do you think? Do you agree that these are the best contact center software on the market? What others would you recommend?