Doom 3 was pretty huge of a step forward in many ways and had no competition for being SOTA except for Far Cry (1). I remember that summer as it was when I had my first job and I saved up to buy a GPU.

Not just graphics but character acting and animation, interactive world elements, deliberately dramatic scenarios in the levels (Half Life pioneered this, but Doom3 had a lot of really good ones).

It was years ahead of what was on consoles at the time.

I think you might be misremembering Doom 3 a bit. Both it and Half Life 2 came out in the same year, and, well... just compare:

https://www.youtube.com/watch?v=aTJ1weGimZQ

and

https://www.youtube.com/watch?v=y_3vMUOayyc

Doom 3's fully real time lighting and bump mapping was technically impressive, and the live interacting UI was very trick, but the character acting and animation was definitely not SOTA. That was Half Life 2. And if we consider impact on the gaming landscape, Doom 3 was if anything a dud. Elements from that game were not taken along, including not even in subsequent Doom games. Meanwhile Half Life 2's approach to storytelling & world building, animations, physics system - those practically defined the next generation.

Doom 3 was SOTA in terms of realtime lighting and shadows, but that's basically it. In terms of visuals, Half-Life 2 with its baked lighting in directional lightmaps (essentially calculating three lightmaps for each surface for lighting coming from different directions, then using those with normal maps during rendering) with radiosity indirect lighting did a much better job with how good environments looked (and it scaled much better than Doom 3 which in lower settings looked worse than Quake 3). Doom 3's character rendering was also subpar compared to Half-Life 2 - let alone character animations mentioned elsewhere (Source/HL2's facial expressions were SOTA for several years after the game was released). Doom 3's physics were also not as complex as HL2's and the game didn't use them much (the expansion did better use of the physics engine and IMO the Grabber feels superior and more seamless in its use compared to the Gravity Gun but the expansion came later and while the Grabber is nice, the rest of the expansion suffered from focusing too much on gimmicks).

In general while Doom 3 has the better (and probably more forward thinking) rendering tech, HL2 also had some very good tech for its time and did a much better use of the tech they had available than Doom 3 did.

That said, personally i enjoy playing Doom 3 much more than HL2 but that is largely because Doom 3 plays more like a traditional shooter with very little scripting / storytelling to get in your way (and the little there is you can ignore it without losing anything) - you just shoot demons, find keycards/PDAs to open doors and that's it for the most part. I often just put it in low volume and play some podcast in the background :-P.

As for Far Cry, the game looked too plastic IMO, i remember playing the game and the characters' muscles had specular reflections :-P.

I feel like the Source engine for Half-Life 2 had some industry shaking physics due to their Havok implementation, which released in the same year. Doom 3 had cool gritty horror looks, but HL2 blew it out of the water SOTA wise, in my opinion.

I have attempted to play Doom 3 on three separate occasions in my life, and each time I gave up before ever having a chance to fire a weapon.

HL2 just on physics wins over Doom 3 any day. It's far superior in every aspect.