CharlesGrey: Really, why is that? I enjoyed the entire series so far -- it's among my all-time favorites.
The original Demon's Souls definitely was an unforgiving bitch, though, even more so than the sequels. It's a great game, but it's one of those cases where I wouldn't recommend for new players to start with the first game of the series. DS2 is probably the most player-friendly, while still being surprisingly tough.
darthspudius: I just didn't like it the way it worked. They messed up the magic. The bonfire system was very annoying as was the whole open world thing. I liked this whole small words and a nexus thing. Also the hit detection was infuriating at times. It just didn't agree with me haha.
Hm, what about the magic? Seems like they added lots more variety and new spells with the latter two games. Most of the gameplay mechanics have gradually been improved throughout the series. If anything, spell casting has always been rather static and not as fun as melee combat ( plus you're reliant on lock-on targeting all the time) even in Demon's Souls.
It's hard for me to pick my favorite Souls game, since they all have weaknesses and unique strengths. For me the strongest aspect of the original Demon's Souls is the soundtrack -- much more original and memorable than in its sequels. Dark Souls 1 had a good soundtrack, but in DS2 it seems rather generic.
Plus, it seems like Demon's Souls also had the best, and most memorable boss fights. Pretty much every single boss had a unique design and combat mechanics. They did a lot of recycling and re-recycling in the sequels.