Moobabe said:
Which do you prefer? BG/BG2 seems to be held in the highest regard on GAF at least. Story isn't the only factor when it comes to the purchase - atmosphere, music etc is pretty important. I picked up PS:T and, despite how much I loved the music, atmosphere, writing and story the combat cheapened the deal ever so slightly.
The Baldur's Gate Trilogy (with BGTuTu) is more than the sum of its individual parts. The combat is better than PS:T's, but fares worse than the IWD series. Likewise, the story is better than IWD's but cannot hold a candle to PS:T's glory in that regard. The writing is consistent throughout, but the real star is the companion banter, which is probably the best I've come across in WRPGs. Put all of these together, and you get an epic adventure spanning 200+ hours that is worth a playthrough.
Despite this, I tend to favor Arcanum because it is not as rigid as Baldur's Gate in its player choices with regards to quest design. With Arcanum, nearly every quest felt like it would play out differently based on my character build, but Baldur's Gate sort of railroads one into completing quests in limited ways. This mostly arises due to the incredible character creation system in Arcanum. The choices and consequences in Arcanum are superior to those in Baldur's Gate, and for many, like myself, that's a huge deal in WRPGs.
Like in the second half of BG2, Arcanum mages tend to become too powerful due to certain spells, so that's something to keep in mind when making your decision on which game to play. The combat system features both a real-time and turn-based system, so that's certainly a plus compared to the real time with pause system that Baldur's Gate employs. On the other hand, the encounter design fluctuates wildly compared to BG2, depending on the character's affinity towards technology/magic - some ridiculously difficult fights for a gunslinger might be a cakewalk for a mage, and vice-versa.
Even ignoring the refreshing world that Arcanum takes place in, the unique musical score alone makes it worth a purchase.