These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Kaelyn and Raal's meeting flashback. "RAAAAWR! GO AWAY, YOU STUPID BEAR!" A LOT of Kaelyn and Raal's interactions, actually. The warm fuzzy brother-sister love vibe is totally there.
Aren cheering up a sad little girl whose friend has died, by making her a shiny rainbow in midair, to show her that "magic still exists in the world." Aren, pretty much, is a walking CMOH.
When one of the active characters gets knocked out in combat, you get a nice little story bit at the end of the battle, in which their companions just flat-out REFUSE to leave them behind. Aww.
Ho Yay: Maybe it's just a byproduct of the Slash Goggles, but many of William and Aren's interactions can come across this way.
Stop with this 'Milord' business, Aren. I make it a policy to dispense with such formalities when someone has just saved my life...
Most Wonderful Sound: Say what you will about the shortcomings of the engine and technology of the time, the music and voice acting are what makes this game really shine. The ambient music is atmospheric and distinctive, and while the voice acting quality varies, some NPCs and the main trio are great. Kaelyn's voice actress especially gets some nice subtle softness sometimes where you wouldn't expect. Plus, some of the sound effects (Ooh, that nice CLICK of an unlocking chest! And the music-based spell-development system!) are really quite lovely.
OT 3: If the above Ho Yay isn't to your liking, this scenario with the main trio also works quite nicely.
One-Scene Wonder: Khorus, the one-eyed, one-armed, arm-wrestling bartender in Chapter 6. "So what do I do?! I STICKS IT IN MY EYE!"
Gar Warren has a pretty entertaining and colorful voice actor too.
Nightmare Fuel: The noise the Wraiths make is kind of unnerving. They would probably be more so if the game were made nowadays, too.
The inside of the cave where Kaelyn's father is hiding is pretty creepy, with shattered windows (in a cave?), broken bookshelves, and magic blast scorch marks on the walls. then you find out exactly why that is... and it becomes a Tearjerker.