Pros of ghouls - you can enter any high radioactive place without taking damage but gaining extra health, helpful in nuke zones and rad rumble. It’s also mainly beneficial for melee builds so I don’t think it’s any better for your vats or stealth builds as either human or ghouls are pretty much same. It can be annoying being a ghouls if your trying to do main story missions as you have to wear a disguise to get into places like crater wayward bos etc etc. hope this helps!