Log shipping cannot do what replication does.

I agree, over small pipes, or an unreliable or slow network connection, replication may timeout or fail or something like that. But there are replication agent parameters and other replication settings which can mitigate this. This is why proper design and pre-deployment testing is crucial. Microsoft also recommends a fast network of 100 Mbps or faster.

The cool thing is, once a replication solution is designed, tested, and deployed correctly, nothing can beat its synchronization capabilities.