I really like the architecture of Pulsar, it is very elegant with clear separation of duties between components. That said, we have used Kafka for so long, and

I really like the architecture of Pulsar, it is very elegant with clear separation of duties between components. That said, we have used Kafka for so long, and it works well enough at our scale that we have no reason to even test Pulsar. Kafka also has much more integrations with other tools due to its popularity.