General Brazilian
coisas confusas / bagunça
Common in everyday speech, 'bagunça' is very colloquial
Rio de Janeiro
coisas confusas / zona
Zone or mess, informal
São Paulo
coisas bagunçadas / desorganizadas
Emphasis on disorder and disorganization
Portugal
coisas misturadas / desordenadas
More formal usage preferred over 'bagunça'