Planescape is a better RPG, hands down. However, Neverwinter has many qualities of its own.

Go for Planescape first. It's magnificent.

Torment, definitely.

The Temple of Elemental Evil can also be picked up for about $10 on the cheap jewel case games shelf. While the storytelling isn't great and some bugs remain, it has by far the best turn-based combat engine of any D&D game.

I didn't like em both very much, and I will face the consequences of saying this. Maybe I should check out Torment some time again, but I disliked the setting and the huge amount of dialog alot. Anywayz, since you liked diablo2, but liked Baldur's Gate less, I would guess you are a bit more action orientated then story orientated RPG. I would suggest NWN then, that has enough action in it.

Another vote for Torment here. The Planescape setting was always my favorite even though it was not all that popular. The setting is so freakin rich, they can do so much cool stuff.

The game itself is good too

I agree with all the Torment fans. One of the best CRPGs ever. Do yourself a favor and don't read any spoilers or guides.

NWN is kind of cool, in the official campaign, I liked the act where you were outside, but I found the rest to be of middling quality. I also played a cool Pool of Radiance campaign for it. All this talk of modules kind of makes me want to re-install.

you can pick up both for about 40 bucks canadian. I've got Planescape on my work PC (don't tell the boss man) and I'm having a great time playing through it. It's definitely dialogue-heavy, and whatever you do, don't play a warrior character. Unlike most RPGs this one rewards intelligence and wisdom far more than dexterity and strength.

Planescape is a truly great game, but as some people have mentioned it is very dense and a little hard to get into. If you're ok with a lot of reading I would definitely recommend tracking down a copy. Planescape uses the same engine as Baldur's Gate so if you didn't find the BG gameplay itself all that compelling you may not enjoy some aspects of Planescape either.

As for Neverwinter, I thought the original campaign was boring, never got around to finishing it, but the expansions were definitely improved, especially Hordes of the Underdark which I quite enjoyed, so if you go with NWN make sure you get the Diamond edition or whichever one includes as much extra content as possible.

Since you seem to enjoy more action-based RPG games (Gothic and Diablo II) perhaps you could give Knights of the Old Republic a try, if you haven't already.

Both are fun games (what little I've played of NWN, that is), but I would go with Torment first.

Well, I can imagine that you get your hopes up if everyone is telling you to play some game. If everyone likes it so much, it must be one hell of a game. And you might think it's better then it actually is. I had the same with KOTOR, my friend was telling me to "play the damn game", so I installed and played a bit, but the crispy nature of the graphics, and the for me not so star wars feel really made me not connect to the game. I couldn't connect to any of the characters also, so I went on playing something else.

Torment, if you can get by the dated graphics, is one of the best CRPG experiences ever. Neverwinter Nights, while no where near the level of Torment, is decent as a single player game. The most fun I had with it, though, was playing through many of the user made mods with friends. For about a year we had a Friday night romp, and it was great fun.

But seriously, you didn't like KOTOR? hand over your gamer license.

Ill stand up at a KOTOR hater. I had the Xbox version and on Tatooine there was a show-stopping crash that made it so that none of my save games worked anymore. After being so disappointed with NWN, my Bioware disliking deepened.