Las Vegas is neutral between Pantheons and is run by six Scions and one Titanspawn collectively called The Hosts of Las Vegas.
The number of Scions a god has is proportional to their renown (though not their legend). This means that an more obscure god (Aranrhiod for example) is likely to have fewer Scions while a commonly known god (Ares) will have more. The cumulative legend of the god, their Scions, and the stories they are linked to directly impact the fecundity of the god.