I've made a few comments recently about how I'm not fond of Sigil, Planescape or the Lady of Pain. So, here's an explanation for why I feel that way. I'm not particularly fond of Planescape in 2E/3E, but I really dislike the idea in 4E.
I, personnaly dislike the idea that a certain setting is a good or a bad idea for a certain edition of D&D. By the way I am a big fan of the PlaneScape setting and especially of the Lady of Main, the factions, the Dabus, the Cant, etc.
I don't plan to play this setting in D&D4 at the moment, but Sigil and the Planes are a place I would gladly play in again with D&D4.
In particular, I really, really dislike how the Lady of Pain devalues the gods. I'm not opposed to areas that gods can't enter (see Death's Reach), but the reason they can't enter there is far more convincing than the fiat that enables Sigil.
This is one of the ideas I really like about the Lady of Pain and Sigil. It shatters our expectations about the Gods and the Multiverse. A place where the Gods are too much like mortals portray them is dull for me.
Then too, Planescape is part of the extreme fragmentation of D&D, so I've always been opposed to it on that principle. (I also am not fond of DiTerlizzi's artwork, and I despise the cant).
Mainstream D&D settings (Greyhawk, Forgotten Planes, Mystara, Golarion, Points of Light) are not my cup of tea. If I get the notion that "I could do it myself", then it doesn't appeal to me. There are ideas in PlaneScape that could not come off of my head, and it sparkled my imagination.
One of the best times I had recently was the PCs meeting the Raven Queen, and them being speechless as a result. This was a god - their god - and she held the power of life and death over them. That's what I want from the gods: these are the creators of humanity and demihumanity, and they should be loved and occasionally feared.
The lady of Pain would not diminish in any way the awe of your players, because it is not a character to be loved, feared, understood, tec. It is something to be avoided...
This is not to say that the gods are omnipotent and invulnerable - by no means - but can you really imagine the Zeus of Greek mythology or the Odin of Norse mythology being unable to affect the Lady of Pain? The influence of Greek and Norse mythology is extremely visible on the 4E mythology, and it'd be nice to see the gods in a similar position of power.
I dislike the 4E Mythology. I much prefer when the mythology is so alien to the game (and game mechanics) that it gives life to the setting. For exemple, I never link any god to an alignement in my games.
[snip]
Returning to Sigil, one effect of the Lady of Pain's existence is that suddenly atheism - in an otherwise theistic cosmos - becomes an option. And, thus, you get the factions. Completely irrelevant outside of Sigil, because the morality and ethics promulgated by the gods actually apply elsewhere. It sort of works in the confused state of mythological affairs that was 2E, where there seems to be 1001 gods or more, but with the tighter set of mythology in 4E, even if the gods don't work as tightly together as a pantheon as the rest of mythology implies they should, the factions stick out like a sore thumb. Thankfully they're mostly not there in 4E.
Factions added a lot of flavour to the game, but needed some maturity on the player side of things. Religiuon, in Fantasy and in the Real World, doesn't have to make sense, and should avoid trying to make sense. The whole Philosophers with clubs idea was very realistic once you know a little bit of the history of philosophy in Greece. It is a mine of idea for a mind such as mine.
The idea of meeting places - civilisation - in the Astral Sea is an interesting one. Personally, I'm very fond of the City of Brass (dating back to the cover of the old Dungeon Masters Guide), but with Sigil, I really need something more than "it exists because of the Lady of Pain". Who uses it? Why do they use it? What is the civilisation of the outer planar creatures that requires such a meeting place to exist?
In my opinion, Sigil doesn't exist because of the Lady of Pain. Sigil is, the Lady of Pain is, and it's a matter of philosophical debate wher the come from, where they go to, how they occured, etc. It is very unhealthy to ask question about the Lady of Pain...
"An angel and a devil sit down at a bar" sounds like a good start to a story, but why would that meeting ever take place? Is it a forced contrivance to tell a story, or does it make sense within the mythology you have? In 4E, it looks forced to me.
This is just why I like this setting : it raises more questions than it answers question. These are the seeds for my creation. You may prefer other hooks for your creativity to sparkel.
The civilisation of the Efreet gives rise to the City of Brass, and the trade opportunities there for high-level characters, and thus I can justify it. I don't have such a justification for the City of Doors.
Cheers!
Personnaly "trade opportunities" would be a nice thing to pile up... But only there is mystery. This is what I find in Sigil. Some fantasy place that makes sense is, in my mind, an oxymoron.
This only happende when Monte Cook wrote "Faction Wars". In my opinion, he killed the magic of the line by applying mundane goals and rules to this setting.