I just rediscovered a childhood classic and I am seriously wanting to get into running this. I was wondering what Emu is preferred, if any.

Also, when playing with PCSX 1.4 I get flashing that isn't suppose to be there sometimes, is there a fix for this?

I've always played on 1.4 when I use emu, it's an accurate choice gameplay wise but as you said there is a flashing issue. As far as I know there was no way to fix that