I'm gonna go with gore. I am okay with tons of blood to convey severity.
Seeing detailed guts or the flesh in wounds. Actually seeing the violence in detailed close up of each part disturbs me way more than the classic slash and then buckets of blood spilling out like garden sprinklers.
Gore can get to me at times. Blood doesn't bother me, especially if it's just a little bit here and there. Once there's guts spilling, that's too much IMO.