简单的结论：

Conclusion

 

In a long-range BVR air battle, the B-21 Raider has the upper hand due to:

    •    Longer missile range (AIM-174B).

    •    Advanced sensor networks and off-board targeting capabilities.

    •    Extreme stealth, making it harder to detect at long distances.

 

However, if the F-22 Raptor can close the range, its speed, agility, and advanced radar give it a decisive advantage. The outcome would largely depend on the engagement range and the effectiveness of sensor integration and missile guidance systems.