Opinion:
Demon's Souls is more based on preparation of your character (weight limit for inventory items, no consistent healing item, warping from nexus)
Dark Souls is more based on what your character needs at the exact moment and how your character will evolve (blacksmith locations are gradual, no weight limit for inventory items, get warp at the half-way point, checkpoints instead of nexus)
On the bosses, it's much to my surprise that the bosses in Dark Souls require more strategy. The only bosses I had serious trouble with were the Maneaters and False King Allant, however, I may have to revise the statement because I had help from Biorr for Penetrator.
Otherwise:
Phalanx is a battle of patience.
Tower Knight, Flamelurker, Fool's Idol, Adjudicator, and Old Hero are just a matter of being defensive.
Armored Spider, Leechmonger, and Dirty Colossus are easily rushed.
Dragon God isn't really a boss as much as it is "hit three things to win and be sure not to die."
Old Monk is only hard depending the PvP.
Storm King is just a matter of figuring out an item description.
Allant and Astraea are plot boss fights
I still like the bosses though.
As for what others have said:
EcoEclipse said:
I don't think that either Dark Souls or Demon's Souls is the harder one. Dark Souls improved upon the learning curve of Demon's, so you kind of know what you're doing more quickly.
However, Demon's Souls was more about the environment and traps. Boulders, arrow traps, hidden enemies, the whole shebang. The only area this really applies in Dark Souls is Sen's Fortress. Other than that, it's about fighting through the enemy, not the world.
I think both games are equally difficult, just in different ways.
This response is the one I agree with the most.
But this guy:
ClockworkUniverse said:
Demon's Souls is more exploitable.
Has an excellent point. It is much easier to break Demon's Souls than Dark Souls. Without working too hard, you can at max out three sets of healing items (that are cheap) by utilizing the re-spawning enemies that give many souls.
I believe when making Dark Souls it was a conscious decision to make it so large soul giving enemies were rarer or did not respawn. Also many enemies in Demon's Souls had 100% item drops, the only enemies in Dark Souls that have 100% drops are in the final area of the game.
Dark Souls's practical healing item (the one you use in combat most often) is limited up to 20 uses, theoretically you can get 99 humanity with enough grinding (DLC made it possible to get twin humanity now, so that's a total of 198+20 healing items).
Exius Xavarus also has a excellent though, Demon's Souls forces you to be much more strategical concerning the enemies. You can take 3 armored Knights easily in Dark Souls, in Demon's Souls you best be prepared if you do the same thing.