Every category has its merits, but one-to-one and small group efforts I believe have the most potential for character development and story; large groups become decentralized, splinter, disorganized or, just as often, begin that way from the start. In those regards they are somewhat notorious, but that is just an underlying quality I've noted to them, which is fairly universally true for any system which requires a hub with plot and character spokes coming out around it.

Admittedly the Advanced category's most glaring weakness is the sheer slowness between posts; there is a great amount of downtime between them, a few days more often than not. Higher ends of the Casual spectrum often have one, maybe two per day, depending on the scheduling. One-to-one? Varies with a partner, but that is my preferred interaction given there's more ability to just build upon a steady, streamlined concept.

That said, welcome to the Guild, [@Zara].