Here are the differences between incremental and differential data from which you can opt for the best backup data option for you.
Incremental backup data: Incremental backup files are the copies of the files that are last changed during the last backup run. It mainly shows the last modified data compared with the latest created data. Files that are changed will be backed up only. Therefore, it costs you less time and more copies of files in a smaller amount of data.
Differential Backup data: There are few similarities between differential and incremental data the first time. Differential will copy all the data from the previous backup, but it will copy all the data changed from the last backup whenever you run it. Thus, it stores more data than an incremental backup. It takes more time and space than incremental data.