The servants and slaves of the Orzhov guild make it quite a bit larger. The smallest guild is probably the Dimir, since the nature of the organization requires it to be very small.I'd imagine Ravnica is at least semi post-scarcity, in order for the guild system to be sustainable. Selesnya and Golgari likely fulfill the agricultural needs of the planet by making vertical farms.
You're born into a guild and the guild becomes your livelihood. Someone needs to clean up all those tanks for the Simic, sweep the stations for the Boros, etc.
I wouldn't be surprised if Selesnya/Golgari are the largest guilds of Ravnica proper, since they both have a philosophy of numbers and are tied closely to population growth. Being Orzhov is like being a 1%er.
Selesnya and Golgari are definitely the largest. Selesnya are all about recruitment and the Golgari are
Pharika isn't really affiliated with the Golgari post-Planeswalker spark ignition.lore question! Do the Golgari belong to the *evil* guilds? I don't really know what their agenda is supposed to be. Is it like this whole Pharika deal where they are simultaneously malevolent and benevolent?
Well, technically, I guess only 3 of the 4 white guilds can be counted as *good* though I'm not really sure what Selesnya is all about either aside from being some sort of hippie cult conclave that grows tree people which sounds rather sinister if you ask me, and Azorius seems to altogether rather indifferent about the whole morality question issue
All the guilds harm the guildless in some way. The Golgari are very cavalier with death, to the point they leave zombies lying around and occasionally release virulent plagues. Still, they're probably among the better guilds because they provide an extremely crucial role to the city and tend to keep to themselves. Most of their conflict is within the faction, and most of the faction dwells in the undercity away from everyone else. You don't mess with the Golgari, they generally don't mess with you. They'll probably use your grandma's skull as a flower pot though.