While we can't speak specifically as to 3rd party head-to-head type benchmarking like you are interested in, one big thing with comparing the BarraCuda Pro and IronWolf Pro is use-case. Spec-wise, there are a lot of similarities between the two, they're both rated for up to 300TB of data per year, both come with a 5 year warranty + 2 free years of Rescue Services, both can handle 24x7 type environments, both have 256 MB cache in the new 12TB capacities.
Getting the most out of your drive(s) depends on having the right drive for that environment. If your needs are more in a creative desktop environment, then the BarraCuda Pro is going to be a better fit. The reason the IronWolf Pro wouldn't be as ideal of a fit in desktop environments is that the firmware on the drives is engineered for these drives to excel when working in NAS/server type environments as members of RAID teams, and some of the subtleties of this mean things like the drive not as aggressively pursuing some errors, figuring they can just pass it on to the next drive in the RAID array for faster performance, versus a desktop drive like the BarraCuda Pro which is more likely to aggressively correct these errors because it isn't intended to be used in the same way.
If your needs are more oriented towards the NAS or server type use, then the IronWolf Pro would be a much better fit. IronWolf Pro drives are rated for enclosures with up to 16 drives, so they are more cost-effective from a perspective of needing to add more drives or storage capacity at a later time. The vibrational considerations of NAS/server environments are heavily considered when NAS drives are designed, desktop grade drives like the BarraCuda Pro just don't have the same protections against performance issues and vibrations causing wear-down or issues with drives in these numbers because they aren't meant for these kinds of environments. IronWolf Pro drives come with built in RV (Rotational Vibration) sensors.
We generally advocate two rules:
1. Always choose the right type of drive for the given application or use-case
2. Always back up your data.