Traditional and Simplified characters
I think the problem is that there's no any true official formal writing system for Puxian Language, because no people nowadays use Puxian Language to Write for daily use. Most native Puxian speakers regard Puxian Language as a spoken-only dialect. So that those who write articles in Puxian or visit Puxian Wiki are just for linguistics hobby, linguistics research or dialect conservation. Most all Puxian speakers can speak another language (Chinese, English and so on), so there's no need to invent a Orthography for Puxian Language. There's also few books or other anything written in Puxian Language, except The Bible (Written by western missionaries hundreds of years ago), and some article written by Puxian linguistics hobbyists (just for hobby or for dialect conservation). Those hobbyists in China may prefer Chinese Character System; while those in other countries may prefer Latin System more.