i would think a screaming demon would be trebley as hell in a strat....i would go for the jb....which would also be trebly but not nearly as much. I THINK!
The JB is definitely the way to go for 80's metal tones in a strat. Having said that, I have a screamin demon in my Ovation Strat. The guys that you mentioned used JB's at one time in their guitars.