2PC tends to have limited throughput due to the participants needing to hold a lock between the voting and commit phase, and all the participants need to support the protocol. Sagas work across different services and data stores and can have high throughput.
However, if all of the data you need to update is in a single database that supports atomic commits, I'd go with that over sagas.
However, if all of the data you need to update is in a single database that supports atomic commits, I'd go with that over sagas.