I play these games for the story and choices and branching paths. Not for the combat. BG2's combat IS outdated. But the IMMERSIOn in the game keeps people hooked. And you can transform and shapeshift and have sieges. So yes, PLanescape Torment is underwhelming and worse in that regard. Plus it's clearly an unpolished game for so many reasons. Good but very flawed.

BG2: Drow city. Demons. Dragons. Werewolves. Spells with raining down meteors among other things.
Neverwinter NIght's 1: SIEGES at times. Transforming. Shapeshifting. Even into a DRAGON. Even if the combat and constant "whack whack whack" gets old you're going to enjoy seeing that.
Planescape Torment: A few skirmish fights. That's... basically it. And the story is underwhelming compared to BG2 and Neverwinter NIghts 1 as well. Since we're going through HELL. And back. And then some. With tons of characters spread out all over with missions and interesting things to say instead of "a few NPCs". How do you even compete against that? Simply put, you can't. Even BG3 has to compete against itself. There better be demons and dragons we're not forced to fight again! Depending on what the player chooses to do of course.