Having pre-set formation could be interesting especialy when your playing alone.
Usually have to unbound all 4 characters to each other and move them around to get ready for the fight so that they don't stand in a pile and get massive CC because they are getting bottle of fire and stuff thrown at the whole group....
Didn't happen often because most fight don't start with the AI throwing stuff at you....but that would solve it....actually having the character spread wider is fine by me
I wouldn't like your first option though because it makes the game more "complicated" compare to it's easy flow at the moment
