Personally it’s between SimpleX and Briar, but SimpleX having an iPhone app so people I know can use it makes it win out.

Im not a fan of no identifiers. Sure simplex is secure with it but I would like to see something like simplex that uses 24 word seed phrases to generste millions of unique identifiers the user can easily backup and restore from a piece of paper and not from a digital backup file.

Another super cool thing about it is that it’s written entirely in Haskell!