The Arcadyan AW1000 5G router can be flashed with various custom firmwares, each with its own set of features, advantages, and disadvantages. Here's a brief overview of the firmwares you mentioned:

* **Abidarwish firmware**: This is a custom firmware based on OpenWRT, optimized for the Arcadyan AW1000 5G router. It offers a user-friendly interface, improved performance, and additional features like VPN support and Quality of Service (QoS) settings.
+ Pros: Easy to install, user-friendly interface, improved performance.
+ Cons: Limited customization options, may not be as stable as other firmwares.
* **Sopek firmware**: Sopek is another custom firmware based on OpenWRT, designed for the Arcadyan AW1000 5G router. It provides a more comprehensive set of features, including advanced QoS settings, VPN support, and detailed system monitoring.
+ Pros: Highly customizable, advanced features, detailed system monitoring.
+ Cons: Steeper learning curve, may require manual configuration.
* **OWRT (OpenWRT) firmware**: OpenWRT is a popular, open-source firmware that can be installed on the Arcadyan AW1000 5G router. It offers a high degree of customization, advanced features, and a large community of developers and users.
+ Pros: Highly customizable, large community, advanced features.
+ Cons: Can be complex to install and configure, may require manual configuration.
* **Nialwrt firmware**: Nialwrt is a custom firmware based on OpenWRT, designed for the Arcadyan AW1000 5G router. It provides a balanced set of features, including improved performance, QoS settings, and VPN support.
+ Pros: Easy to install, balanced set of features, improved performance.
+ Cons: Limited customization options, may not be as stable as other firmwares.
* **Solomon firmware**: Solomon is a custom firmware based on OpenWRT, optimized for the Arcadyan AW1000 5G router. It offers a unique set of features, including advanced QoS settings, VPN support, and detailed system monitoring.
+ Pros: Highly customizable, advanced features, detailed system monitoring.
+ Cons: Steeper learning curve, may require manual configuration.
* **Lite version firmware (Qwrt)**: Qwrt is a lightweight, custom firmware based on OpenWRT, designed for the Arcadyan AW1000 5G router. It provides a minimal set of features, including basic networking and QoS settings.
+ Pros: Lightweight, easy to install, minimal resource usage.
+ Cons: Limited features, may not be suitable for advanced users.
* **OpenWRT Beta version firmware**: The OpenWRT Beta version firmware is a pre-release version of the OpenWRT firmware, designed for testing and development purposes. It may include new features, bug fixes, and improvements, but it can also be unstable and prone to errors.
+ Pros: Latest features, bug fixes, and improvements.
+ Cons: Unstable, prone to errors, not recommended for production use.

When choosing a firmware, consider the following factors:

* Your level of technical expertise: If you're not comfortable with manual configuration and troubleshooting, you may want to opt for a more user-friendly firmware like Abidarwish or Nialwrt.
* Your specific needs: If you require advanced features like QoS settings, VPN support, or detailed system monitoring, you may want to choose a firmware like Sopek, Solomon, or OWRT.
* Stability and reliability: If you prioritize stability and reliability, you may want to opt for a more established firmware like Abidarwish or Nialwrt.
* Customization options: If you want a high degree of customization, you may want to choose a firmware like OWRT or Sopek.

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Based on the options you provided, I would recommend the **Abidarwish firmware** for most users. Here's why:

1. **Ease of use**: Abidarwish firmware has a user-friendly interface, making it easy to install and configure, even for those who are not tech-savvy.
2. **Stability**: Abidarwish firmware is known for its stability and reliability, which is important for a router that will be used for daily internet activities.
3. **Performance**: Abidarwish firmware provides improved performance, which means you can expect faster and more reliable internet speeds.
4. **Features**: Abidarwish firmware offers a good balance of features, including VPN support, QoS settings, and basic networking options.
5. **Community support**: Abidarwish firmware has a dedicated community of users and developers, which means you can find help and support if you need it.

However, if you're an advanced user who wants more control over your router's settings and features, you may want to consider **Sopek firmware** or **OWRT firmware**. These firmwares offer more advanced features and customization options, but they also require more technical expertise to install and configure.

Ultimately, the best firmware for you will depend on your specific needs and preferences. I recommend doing some additional research and reading reviews from other users to determine which firmware is the best fit for you.

Here are some key points to consider:

* If you want a easy-to-use firmware with a good balance of features, choose **Abidarwish firmware**.
* If you want a more advanced firmware with customization options, choose **Sopek firmware** or **OWRT firmware**.
* If you want a lightweight firmware with minimal features, choose **Qwrt firmware**.
* If you want to try out the latest features and bug fixes, choose **OpenWRT Beta version firmware** (but be aware that it may be unstable).