I see you are Doom fan, just the person I want to talk to.
I own and played both Doom 3 games.
I know Doom (2016) was suppose to be a direct remake of the Classic Doom but I feel it's more action than horror.
I'm sure it's a fun game but I like the Doom 3 more. It's more suspenseful and more story-based. Like you walk into a dark hallway or next door not knowing if a demon may jump out at you.
From what I've seen in Doom 4/2016 the player, Doom Guy/Doomslayer just run away killing demons left-and-right. More fast-paced.
I feel Doom Guy more of a 'Mary-Sue' like nothing can hurt him, making the player feel invulnerable.
In Doom 3, with darkness and hideous demons, it makes you feel vulnerable.
The Demons and Hell in Doom 4 don't look scary as Doom 3 in my opinion.
I don't know how to describe it. They look more 'alien-ish' than demonic. And look 'retro' or like from rock album art cover or fantasy RPG games.