Determining the "best" HMI depends on various factors such as the specific requirements of your application, budget constraints, industry standards, and user preferences. Different HMIs offer different features, capabilities, and pricing, so it's essential to evaluate your needs and priorities before selecting the most suitable option.

Here are some factors to consider when choosing an HMI:

1. Functionality: Consider the features and functionalities required for your application, such as data visualization, alarm management, historical data logging, trending, remote access, and integration with other systems.

2. Usability: Look for an HMI that offers an intuitive and user-friendly interface. Consider factors such as ease of navigation, customization options, and support for multiple languages.

3. Compatibility: Ensure that the HMI is compatible with your existing hardware, software, and communication protocols. Consider factors such as compatibility with PLCs, SCADA systems, operating systems, web browsers, and communication standards.

4. Scalability: Choose an HMI that can scale with your business needs and accommodate future growth. Consider factors such as support for multiple screens, distributed architectures, and expansion options.

5. Reliability: Look for an HMI that offers robustness, stability, and fault tolerance. Consider factors such as reliability metrics, error handling capabilities, and support for redundant configurations.

6. Performance: Evaluate the performance of the HMI in terms of responsiveness, speed, and scalability. Consider factors such as response time, refresh rate, load handling capabilities, and resource usage.

7. Support and Maintenance: Choose an HMI from a reputable vendor that offers comprehensive support, documentation, training, and maintenance services. Consider factors such as vendor reputation, technical support options, and software updates.

8. Cost: Consider the total cost of ownership, including upfront costs, licensing fees, training expenses, and ongoing maintenance costs. Choose an HMI that offers the best value for your budget while meeting your requirements.

Some popular HMI software options include Wonderware InTouch, Ignition by Inductive Automation, FactoryTalk View by Rockwell Automation, WinCC by Siemens, and VTScada by Trihedral. It's essential to evaluate each option carefully and choose the one that best fits your needs and priorities. Additionally, consider consulting with industry experts or seeking recommendations from peers to make an informed decision.