Originally Posted by KARFA

That I am not exactly sure of. I would imagine based on guess work for an A320 it is the right (no.2) engine which stays on and the left gets shut down. Smilarly when pushing back usually you start the right first so I am guessing under this procedure it is the same and the left is started later.

On an A380 I would imagine there would be a preference for shutting down the outboard engines as they do have a higher risk of FOD ingestion being so far out and sometimes beyond the edge of the taxiway.

Hopefully someone can provide an accurate answer though.