Comparing the entire database, without filters between source database on SQL Server 2016 and target database on SQL Server 2012. Ignoring whitespaces, statistics, permissions, and extended properties, one gets:
**********************************************************************
Exception Information
**********************************************************************
Exception: System.Xml.XmlException
Message : 'punctuation' is an unexpected token. Expecting white space. Line 5874, position 67.
Stack Trace:
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.Throw(String res, String arg)
at System.Xml.XmlTextReaderImpl.ThrowExpectingWhitespace(Int32 pos)
at System.Xml.XmlTextReaderImpl.ParseAttributes()
at System.Xml.XmlTextReaderImpl.ParseElement()
at System.Xml.XmlTextReaderImpl.ParseElementContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.XmlTextReader.Read()...