Normal for now. Survival when the changes drop.
I always play on Normal. I don't play roleplaying games for the "difficulty."
I play on hard, Just to get the legendaries.
Well that and my character has nearly 400 defence without power armor.
Since I limit my perk and don't dress up into tortoises, Normal and Hard give me sensible damage input and output.
Unless the enemy is level 1 - 20, they now still give me a challenge.