Neverwinter Nights 2

• Your main character's class isn't as important as in the first game as you have access to a larger party with the ability to directly control them at will. Some classes are stronger than others but the game is finishable with any of them, so you can go with whatever sounds interesting.

• Your actions and words determine what your companions think of you, and it's worth trying to keep them as happy as you can (even if playing as an evil character) as it does have an impact on the story and gameplay.

• It's probably worth leveling at least one communication skill (Diplomacy, Bluff, Intimidate) if possible, with Diplomacy being the most frequently used one.

• The first act is probably the weakest part of NWN2, but for the most part the game gets better as you go. Mask of The Betrayer which continues from the main story is widely considered excellent.