Sigil logo

[Baron Opal]

The top one is slick, as is the bottom one. I actually think that the bottom style one would work for a noir theme game in Eberron. I get the strongest Sigil vibe from the top one, however.

 

[Felix]

Perhaps if the denizens of Sigil chose thier font, the'd like the bottom one because it is as elegant and graceful as their city. Those of us looking at Sigil from the outside may find more of a connection to the keyhole-themed top choice.

 

[Ferret]

All of them are nice, but the top one strikes me as most like my view of Sigil. The second would work for Eberron, and the third for Forgotten Realms.

RW has it. They all look good but the top looks best.