I usually end up using -rtz because I’m usually not 100% sure all the permissions and ownership information are right and I hate littering directories with inconsistent permissions. For a big transfer, I’ll start with -rtvz --stats --dry-run and make sure it’s only transferring the files it should, then I’ll do -rtz --stats --info=progress2 --no-i-r to get one progress bar to watch for the whole transfer.